ensuring results are always returned

model/vfb.xmi

@@ -399,7 +399,7 @@
           xsi:type="gep_2:SimpleQuery"
           name="Get baseline term info"
           description="Fetches basic term details."
-          query=""statement": "MATCH (primary {short_form: {ID} }) WHERE NOT primary:pub AND NOT primary:License AND NOT primary:Individual:Anatomy AND NOT primary:Class:Anatomy AND NOT primary:Template AND NOT primary:DataSet OPTIONAL MATCH (o:Class)<-[r:SUBCLASSOF|INSTANCEOF]-(primary)  WITH CASE WHEN o IS NULL THEN [] ELSE COLLECT ({ short_form: o.short_form, label: o.label, iri: o.iri, types: labels(o) } ) END AS parents , primary OPTIONAL MATCH (o)<-[r { type: 'Related' }]-(primary) WITH CASE WHEN o IS NULL THEN [] ELSE COLLECT ({ relation: { label: r.label, iri: r.uri, type: type(r) } , object: { short_form: o.short_form, label: o.label, iri: o.iri, types: labels(o) }  }) END AS relationships , parents, primary OPTIONAL MATCH (s:Site)<-[dbx:hasDbXref]-(primary)  WITH CASE WHEN s IS NULL THEN [] ELSE COLLECT({ link: s.link_base + coalesce(dbx.accession, ''), link_text: s.label, site: { short_form: s.short_form, label: s.label, iri: s.iri, types: labels(s) } , icon: coalesce(s.link_icon_url, '') }) END AS xrefs, parents, relationships, primary OPTIONAL MATCH (primary)-[rp:has_reference { typ: 'syn'}]->(p:pub:Individual)  WITH CASE WHEN p is null THEN [] ELSE collect({ pub: { core: { short_form: p.short_form, label: p.label, iri: p.iri, types: labels(p) } , PubMed: coalesce(p.PMID, ''), FlyBase: coalesce(p.FlyBase, ''), DOI: coalesce(p.DOI, '') } , synonym: { label: coalesce(rp.synonym, ''), scope: coalesce(rp.scope, ''), type: coalesce(rp.cat,'') }  }) END AS pub_syn, parents, relationships, xrefs, primary OPTIONAL MATCH (primary)-[rp:has_reference { typ: 'def'}]->(p:pub:Individual) WITH CASE WHEN p is null THEN [] ELSE collect({ core: { short_form: p.short_form, label: p.label, iri: p.iri, types: labels(p) } , PubMed: coalesce(p.PMID, ''), FlyBase: coalesce(p.FlyBase, ''), DOI: coalesce(p.DOI, '') } ) END AS def_pubs, parents, relationships, xrefs, pub_syn, primary RETURN { core: { short_form: primary.short_form, label: primary.label, iri: primary.iri, types: labels(primary) } , description: coalesce(primary.description, []), comment: coalesce(primary.`annotation-comment`, [])} as term ,parents,relationships,xrefs,pub_syn,def_pubs, 'Base' as query, 'manual' AS version", "parameters" : { "ID" : "$ID" }"
+          query=""statement": "MATCH (primary {short_form: {ID} }) OPTIONAL MATCH (o:Class)<-[r:SUBCLASSOF|INSTANCEOF]-(primary)  WITH CASE WHEN o IS NULL THEN [] ELSE COLLECT ({ short_form: o.short_form, label: o.label, iri: o.iri, types: labels(o) } ) END AS parents , primary OPTIONAL MATCH (o)<-[r { type: 'Related' }]-(primary) WITH CASE WHEN o IS NULL THEN [] ELSE COLLECT ({ relation: { label: r.label, iri: r.uri, type: type(r) } , object: { short_form: o.short_form, label: o.label, iri: o.iri, types: labels(o) }  }) END AS relationships , parents, primary OPTIONAL MATCH (s:Site)<-[dbx:hasDbXref]-(primary)  WITH CASE WHEN s IS NULL THEN [] ELSE COLLECT({ link: s.link_base + coalesce(dbx.accession, ''), link_text: s.label, site: { short_form: s.short_form, label: s.label, iri: s.iri, types: labels(s) } , icon: coalesce(s.link_icon_url, '') }) END AS xrefs, parents, relationships, primary OPTIONAL MATCH (primary)-[rp:has_reference { typ: 'syn'}]->(p:pub:Individual)  WITH CASE WHEN p is null THEN [] ELSE collect({ pub: { core: { short_form: p.short_form, label: p.label, iri: p.iri, types: labels(p) } , PubMed: coalesce(p.PMID, ''), FlyBase: coalesce(p.FlyBase, ''), DOI: coalesce(p.DOI, '') } , synonym: { label: coalesce(rp.synonym, ''), scope: coalesce(rp.scope, ''), type: coalesce(rp.cat,'') }  }) END AS pub_syn, parents, relationships, xrefs, primary OPTIONAL MATCH (primary)-[rp:has_reference { typ: 'def'}]->(p:pub:Individual) WITH CASE WHEN p is null THEN [] ELSE collect({ core: { short_form: p.short_form, label: p.label, iri: p.iri, types: labels(p) } , PubMed: coalesce(p.PMID, ''), FlyBase: coalesce(p.FlyBase, ''), DOI: coalesce(p.DOI, '') } ) END AS def_pubs, parents, relationships, xrefs, pub_syn, primary RETURN { core: { short_form: primary.short_form, label: primary.label, iri: primary.iri, types: labels(primary) } , description: coalesce(primary.description, []), comment: coalesce(primary.`annotation-comment`, [])} as term ,parents,relationships,xrefs,pub_syn,def_pubs, 'Base' as query, 'manual' AS version", "parameters" : { "ID" : "$ID" }"
           countQuery=""statement": "MATCH (primary {short_form: {ID}} ) RETURN count(primary) as count", "parameters" : { "ID" : "$ID" }"/>
       <queryChain
           xsi:type="gep_2:SimpleQuery"
@@ -409,7 +409,7 @@
           query="&quot;statement&quot;: &quot;MATCH (primary:Class) WHERE primary.short_form in [{ID}] WITH primary OPTIONAL MATCH (o:Class)&lt;-[r:SUBCLASSOF|INSTANCEOF]-(primary) WITH CASE WHEN o IS NULL THEN [] ELSE COLLECT ({ short_form: o.short_form, label: coalesce(o.label,''), iri: o.iri, types: labels(o) } ) END AS parents ,primary OPTIONAL MATCH (o)&lt;-[r {type:'Related'}]-(primary) WITH CASE WHEN o IS NULL THEN [] ELSE COLLECT ({ relation: { label: r.label, iri: r.uri, type: type(r) } , object: { short_form: o.short_form, label: coalesce(o.label,''), iri: o.iri, types: labels(o) }  }) END AS relationships ,primary,parents OPTIONAL MATCH (s:Site { short_form: primary.self_xref })  WITH CASE WHEN s IS NULL THEN [] ELSE COLLECT({ link_base: s.link_base, accession: coalesce(primary.short_form, ''), link_text: primary.label + ' on ' + s.label, site: { short_form: s.short_form, label: coalesce(s.label,''), iri: s.iri, types: labels(s) } , icon: coalesce(s.link_icon_url, ''),  link_postfix: coalesce(s.link_postfix, '')})  END AS self_xref, primary, parents, relationships OPTIONAL MATCH (s:Site)&lt;-[dbx:hasDbXref]-(primary) WITH CASE WHEN s IS NULL THEN self_xref ELSE COLLECT({ link_base: s.link_base, accession: coalesce(dbx.accession, ''), link_text: primary.label + ' on ' + s.label, site: { short_form: s.short_form, label: coalesce(s.label,''), iri: s.iri, types: labels(s) } , icon: coalesce(s.link_icon_url, ''),  link_postfix: coalesce(s.link_postfix, '')})   + self_xref END AS xrefs,primary,parents,relationships OPTIONAL MATCH (primary)&lt;-[:has_source|SUBCLASSOF|INSTANCEOF*]-(i:Individual)&lt;-[:depicts]-(channel:Individual)-[irw:in_register_with]->(template:Individual)-[:depicts]->(template_anat:Individual) WITH template, channel, template_anat, irw, primary, parents, relationships, xrefs , i limit 5 OPTIONAL MATCH (channel)-[:is_specified_output_of]->(technique:Class) WITH CASE WHEN channel IS NULL THEN [] ELSE COLLECT({ anatomy: { short_form: i.short_form, label: coalesce(i.label,''), iri: i.iri, types: labels(i) } , channel_image: { channel: { short_form: channel.short_form, label: coalesce(channel.label,''), iri: channel.iri, types: labels(channel) } , imaging_technique: { short_form: technique.short_form, label: coalesce(technique.label,''), iri: technique.iri, types: labels(technique) } ,image: { template_channel : { short_form: template.short_form, label: coalesce(template.label,''), iri: template.iri, types: labels(template) } , template_anatomy: { short_form: template_anat.short_form, label: coalesce(template_anat.label,''), iri: template_anat.iri, types: labels(template_anat) } ,image_folder: irw.folder, index: coalesce(irw.index, []) + [] }} }) END AS anatomy_channel_image ,primary,parents,relationships,xrefs OPTIONAL MATCH (primary)-[rp:has_reference { typ: 'syn'}]->(p:pub) WITH CASE WHEN p is null THEN [] ELSE collect({ pub: { core: { short_form: p.short_form, label: coalesce(p.label,''), iri: p.iri, types: labels(p) } , PubMed: coalesce(p.PMID, ''), FlyBase: coalesce(p.FlyBase, ''), DOI: coalesce(p.DOI, '') } , synonym: { label: coalesce(rp.synonym, ''), scope: coalesce(rp.scope, ''), type: coalesce(rp.cat,'') }  }) END AS pub_syn,primary,parents,relationships,xrefs,anatomy_channel_image OPTIONAL MATCH (primary)-[rp:has_reference { typ: 'def'}]->(p:pub) WITH CASE WHEN p is null THEN [] ELSE collect({ core: { short_form: p.short_form, label: coalesce(p.label,''), iri: p.iri, types: labels(p) } , PubMed: coalesce(p.PMID, ''), FlyBase: coalesce(p.FlyBase, ''), DOI: coalesce(p.DOI, '') } ) END AS def_pubs,primary,parents,relationships,xrefs,anatomy_channel_image,pub_syn RETURN { core : { short_form: primary.short_form, label: coalesce(primary.label,''), iri: primary.iri, types: labels(primary) } , description : coalesce(primary.description, []), comment : coalesce(primary.`annotation - comment`, []) } AS term, 'Get JSON for Class' AS query, '6959794' AS version , parents, relationships, xrefs, anatomy_channel_image, pub_syn, def_pubs&quot;, &quot;parameters&quot; : { &quot;ID&quot; : &quot;$ID&quot; }"
           countQuery="&quot;statement&quot;: &quot;MATCH (primary:Class {short_form: {ID}} ) RETURN count(primary) as count&quot;, &quot;parameters&quot; : { &quot;ID&quot; : &quot;$ID&quot; }">
         <matchingCriteria
-            type="//@libraries.3/@types.1 //@libraries.3/@types.36"/>
+            type="//@libraries.3/@types.1"/>
       </queryChain>
       <queryChain
           xsi:type="gep_2:SimpleQuery"
@@ -419,7 +419,7 @@
           query="&quot;statement&quot;: &quot;MATCH (primary:Individual) WHERE primary.short_form in [{ID}] WITH primary OPTIONAL MATCH (primary)-[:has_source]->(ds:DataSet)-[:has_license]->(l:License) WITH COLLECT ({ dataset: { link : coalesce(ds.dataset_link, ''), core : { short_form: ds.short_form, label: coalesce(ds.label,''), iri: ds.iri, types: labels(ds) }  }, license: { icon : coalesce(l.license_logo, ''), link : coalesce(l.license_url, ''), core : { short_form: l.short_form, label: coalesce(l.label,''), iri: l.iri, types: labels(l) }  }}) AS dataset_license,primary OPTIONAL MATCH (o:Class)&lt;-[r:SUBCLASSOF|INSTANCEOF]-(primary) WITH CASE WHEN o IS NULL THEN [] ELSE COLLECT ({ short_form: o.short_form, label: coalesce(o.label,''), iri: o.iri, types: labels(o) } ) END AS parents ,primary,dataset_license OPTIONAL MATCH (o)&lt;-[r {type:'Related'}]-(primary) WITH CASE WHEN o IS NULL THEN [] ELSE COLLECT ({ relation: { label: r.label, iri: r.uri, type: type(r) } , object: { short_form: o.short_form, label: coalesce(o.label,''), iri: o.iri, types: labels(o) }  }) END AS relationships ,primary,dataset_license,parents OPTIONAL MATCH (s:Site { short_form: primary.self_xref })  WITH CASE WHEN s IS NULL THEN [] ELSE COLLECT({ link_base: s.link_base, accession: coalesce(primary.short_form, ''), link_text: primary.label + ' on ' + s.label, site: { short_form: s.short_form, label: coalesce(s.label,''), iri: s.iri, types: labels(s) } , icon: coalesce(s.link_icon_url, ''),  link_postfix: coalesce(s.link_postfix, '')})  END AS self_xref, primary, dataset_license, parents, relationships OPTIONAL MATCH (s:Site)&lt;-[dbx:hasDbXref]-(primary) WITH CASE WHEN s IS NULL THEN self_xref ELSE COLLECT({ link_base: s.link_base, accession: coalesce(dbx.accession, ''), link_text: primary.label + ' on ' + s.label, site: { short_form: s.short_form, label: coalesce(s.label,''), iri: s.iri, types: labels(s) } , icon: coalesce(s.link_icon_url, ''),  link_postfix: coalesce(s.link_postfix, '')})   + self_xref END AS xrefs,primary,dataset_license,parents,relationships OPTIONAL MATCH (primary)&lt;-[:depicts]-(channel:Individual)-[irw:in_register_with]->(template:Individual)-[:depicts]->(template_anat:Individual) WITH template, channel, template_anat, irw, primary, dataset_license, parents, relationships, xrefs   OPTIONAL MATCH (channel)-[:is_specified_output_of]->(technique:Class) WITH CASE WHEN channel IS NULL THEN [] ELSE collect ({ channel: { short_form: channel.short_form, label: coalesce(channel.label,''), iri: channel.iri, types: labels(channel) } , imaging_technique: { short_form: technique.short_form, label: coalesce(technique.label,''), iri: technique.iri, types: labels(technique) } ,image: { template_channel : { short_form: template.short_form, label: coalesce(template.label,''), iri: template.iri, types: labels(template) } , template_anatomy: { short_form: template_anat.short_form, label: coalesce(template_anat.label,''), iri: template_anat.iri, types: labels(template_anat) } ,image_folder: irw.folder, index: coalesce(irw.index, []) + [] }}) END AS channel_image,primary,dataset_license,parents,relationships,xrefs OPTIONAL MATCH (o:Individual)&lt;-[r {type:'Related'}]-(primary) WITH CASE WHEN o IS NULL THEN [] ELSE COLLECT ({ relation: { label: r.label, iri: r.uri, type: type(r) } , object: { short_form: o.short_form, label: coalesce(o.label,''), iri: o.iri, types: labels(o) }  }) END AS related_individuals ,primary,dataset_license,parents,relationships,xrefs,channel_image RETURN { core : { short_form: primary.short_form, label: coalesce(primary.label,''), iri: primary.iri, types: labels(primary) } , description : coalesce(primary.description, []), comment : coalesce(primary.`annotation - comment`, []) } AS term, 'Get JSON for Individual:Anatomy' AS query, '6959794' AS version , dataset_license, parents, relationships, xrefs, channel_image, related_individuals&quot;, &quot;parameters&quot; : { &quot;ID&quot; : &quot;$ID&quot; }"
           countQuery="&quot;statement&quot;: &quot;MATCH (primary:Individual {short_form: {ID}} ) RETURN count(primary) as count&quot;, &quot;parameters&quot; : { &quot;ID&quot; : &quot;$ID&quot; }">
         <matchingCriteria
-            type="//@libraries.3/@types.0 //@libraries.3/@types.36"/>
+            type="//@libraries.3/@types.0"/>
       </queryChain>
       <queryChain
           xsi:type="gep_2:SimpleQuery"