PMC:7340597 / 154-171 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T3","span":{"begin":0,"end":8},"obj":"Sentence"},{"id":"T4","span":{"begin":9,"end":16},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Abstract\nPurpose\n"}