PMC:1540739 / 859-869 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T600","span":{"begin":1,"end":9},"obj":"NN"},{"id":"T602","span":{"begin":9,"end":10},"obj":"."}],"text":" exchange."}

{"project":"craft-ca-core-ex-dev","denotations":[{"id":"T431","span":{"begin":1,"end":9},"obj":"SO_EXT:sequence_substitution_process"}],"text":" exchange."}