PMC:1315279 / 21-25 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T243","span":{"begin":1,"end":4},"obj":"NN"}],"text":" RNA"}

{"project":"craft-ca-core-ex-dev","denotations":[{"id":"T124","span":{"begin":1,"end":4},"obj":"CHEBI_SO_EXT:RNA"}],"text":" RNA"}