PMC:400732 / 201-215 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T252","span":{"begin":0,"end":2},"obj":"VBZ"},{"id":"T265","span":{"begin":3,"end":12},"obj":"JJ"}],"relations":[{"id":"R35","pred":"acomp","subj":"T265","obj":"T252"}],"text":"is essential f"}