PMC:1255741 / 13536-13537 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T3613","span":{"begin":0,"end":1},"obj":"NN"}],"text":"R"}

{"project":"craft-ca-core-ex-dev","denotations":[{"id":"T4933","span":{"begin":0,"end":1},"obj":"CHEBI_SO_EXT:arginine"}],"text":"R"}