PMC:1140370 / 49-59 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T150","span":{"begin":2,"end":10},"obj":"NN"},{"id":"T155","span":{"begin":0,"end":1},"obj":"CD"}],"text":"7 helicase"}

{"project":"craft-ca-core-ex-dev","denotations":[{"id":"T89","span":{"begin":2,"end":10},"obj":"GO_EXT:0004386"}],"text":"7 helicase"}