PMC:1564426 / 5768-5782 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T2918","span":{"begin":5,"end":11},"obj":"NNS"},{"id":"T2919","span":{"begin":12,"end":14},"obj":"IN"}],"relations":[{"id":"R903","pred":"prep","subj":"T2919","obj":"T2918"}],"text":"rent stages of"}