PMC:441373 / 486-503 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T252","span":{"begin":2,"end":11},"obj":"NN"},{"id":"T253","span":{"begin":12,"end":14},"obj":"IN"}],"relations":[{"id":"R70","pred":"prep","subj":"T253","obj":"T252"}],"text":"e evolution of th"}