PMC:340383 / 22-41 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T220","span":{"begin":0,"end":16},"obj":"NN"},{"id":"T221","span":{"begin":17,"end":19},"obj":"IN"}],"relations":[{"id":"R5","pred":"prep","subj":"T221","obj":"T220"}],"text":"characterization of"}