PMC:1435744 / 873-879 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T1162","span":{"begin":2,"end":3},"obj":"NN"},{"id":"T1163","span":{"begin":1,"end":2},"obj":"HYPH"},{"id":"T1164","span":{"begin":4,"end":6},"obj":"VBZ"}],"relations":[{"id":"R144","pred":"punct","subj":"T1163","obj":"T1162"}],"text":"r-s is"}