PMC:1087847 / 339-356 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T320","span":{"begin":5,"end":16},"obj":"NN"},{"id":"T322","span":{"begin":0,"end":4},"obj":"NN"}],"relations":[{"id":"R61","pred":"compound","subj":"T322","obj":"T320"}],"text":"wave propagation "}