{
            "output_column_name": "onset_date",
            "comparison_levels": [
                {
                    "sql_condition": "`onset_date_l` IS NULL OR `onset_date_r` IS NULL",
                    "label_for_charts": "Null",
                    "is_null_level": true
                },
                {
                    "sql_condition": "`onset_date_precision_l` IS NULL OR `onset_date_precision_r` IS NULL",
                    "label_for_charts": "Null",
                    "is_null_level": true
                },
                {
                    "sql_condition": "onset_date_precision_l = 'a' OR onset_date_precision_r = 'a'",
                    "label_for_charts": "Precision is year level",
                    "is_null_level": true
                },
                {
                    "sql_condition": "((onset_date_precision_l = 'd' AND onset_date_precision_r = 'd') AND substring(onset_date_l, 1, 10) = substring(onset_date_r, 1, 10))",
                    "label_for_charts": "Exact match",
                    "m_probability": 0.008781686156932093,
                    "u_probability": 0.0003800898016987395
                },
                {
                    "sql_condition": "((onset_date_precision_l = 'mo' OR onset_date_precision_r = 'mo') AND substring(onset_date_l, 1, 7) = substring(onset_date_r, 1, 7))",
                    "label_for_charts": "Exact match on month",
                    "m_probability": 0.012227534768256604,
                    "u_probability": 0.0006739407408271768
                },
                {
                    "sql_condition": "onset_date_precision_l = 'd' AND onset_date_precision_r = 'd' AND substring(onset_date_l, 1, 7) = substring(onset_date_r, 1, 7)",
                    "label_for_charts": "Same month different day",
                    "m_probability": 0.17938137267318346,
                    "u_probability": 0.009970745648461522
                },
                {
                    "sql_condition": "(onset_date_precision_l IN ('mo', 'd') AND onset_date_precision_r IN ('mo', 'd') AND CAST(substring(onset_date_l, 6, 2) AS INT) - CAST(substring(onset_date_r, 6, 2) AS INT) BETWEEN -1 AND 1)",
                    "label_for_charts": "Within one month",
                    "m_probability": 0.17896392715687087,
                    "u_probability": 0.22941113166127605
                },
                {
                    "sql_condition": "ELSE",
                    "label_for_charts": "All other comparisons",
                    "m_probability": 0.620645479244757,
                    "u_probability": 0.7595640921477365
                }
            ],
            "comparison_description": "Date comparison for onset_date"
        }