PMC:441373 / 16-32 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T177","span":{"begin":3,"end":12},"obj":"NN"},{"id":"T178","span":{"begin":13,"end":15},"obj":"IN"}],"relations":[{"id":"R4","pred":"prep","subj":"T178","obj":"T177"}],"text":"on evolution of "}