PMC:548520 / 552-561 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T217","span":{"begin":0,"end":2},"obj":"TO"},{"id":"T218","span":{"begin":3,"end":8},"obj":"VB"}],"relations":[{"id":"R89","pred":"aux","subj":"T217","obj":"T218"}],"text":"to serve "}