PMC:314463 / 489-497 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T249","span":{"begin":2,"end":3},"obj":"-LRB-"},{"id":"T250","span":{"begin":3,"end":5},"obj":"NN"},{"id":"T251","span":{"begin":5,"end":6},"obj":"-RRB-"}],"text":"n (at) n"}