PMC:7001240 / 7703-7792 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T37","span":{"begin":0,"end":1},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"},{"id":"T38","span":{"begin":7,"end":8},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"a When a city is served by several airports, these airports are considered as one entity."}

{"project":"LitCovid-sentences","denotations":[{"id":"T63","span":{"begin":0,"end":89},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"a When a city is served by several airports, these airports are considered as one entity."}