PMC:549712 / 1351-1375 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T487","span":{"begin":2,"end":4},"obj":"VBZ"},{"id":"T488","span":{"begin":5,"end":14},"obj":"JJ"},{"id":"T489","span":{"begin":15,"end":18},"obj":"IN"},{"id":"T490","span":{"begin":19,"end":22},"obj":"DT"}],"relations":[{"id":"R197","pred":"acomp","subj":"T488","obj":"T487"},{"id":"R198","pred":"prep","subj":"T489","obj":"T488"}],"text":"r is essential for the d"}