PMC:1084331 / 1551-1557 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T1556","span":{"begin":2,"end":4},"obj":"TO"}],"text":"r to b"}

{"project":"biosemtest","denotations":[{"id":"T631","span":{"begin":2,"end":4},"obj":"UMLS/C0319022"}],"text":"r to b"}