PMC:7243778 / 38363-38415 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T436","span":{"begin":23,"end":24},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"Vaccine development is a long and expensive process."}

{"project":"LitCovid-sentences","denotations":[{"id":"T298","span":{"begin":0,"end":52},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Vaccine development is a long and expensive process."}