delimited text objects
they begin and end with matching symbols. that inside the object.
bounded text objects
words, sentences, and paragraphs are defined by boundaries. that around the object.
interacts with everything from the first to the last character of the current word.
does the same with
iw, but it extends the range to include a whitespace character after or before the word, if one is present.
d{motion}: tends to work withaw,as,apc{motion}: tends to work withiw,is,ip