PMC:1564426 / 6613-6627 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T4605","span":{"begin":0,"end":2},"obj":"TO"},{"id":"T4606","span":{"begin":3,"end":14},"obj":"VB"}],"relations":[{"id":"R924","pred":"aux","subj":"T4605","obj":"T4606"}],"text":"To investigate"}