PMC:1914394 / 30035-30055 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T16492","span":{"begin":1,"end":10},"obj":"NN"},{"id":"T16493","span":{"begin":11,"end":14},"obj":"RB"},{"id":"T16494","span":{"begin":15,"end":19},"obj":"VBN"}],"text":" knowledge not been "}