PMC:1435744 / 5487-5491 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T4204","span":{"begin":1,"end":2},"obj":"-LRB-"},{"id":"T4205","span":{"begin":2,"end":4},"obj":"CD"}],"relations":[{"id":"R900","pred":"punct","subj":"T4204","obj":"T4205"}],"text":" [20"}