PMC:7571312 / 38836-38938 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T387","span":{"begin":50,"end":51},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"The reaction mixture gradually became opaque with a fine white precipitate and after 1 h was filtered."}

{"project":"LitCovid-PD-CHEBI","denotations":[{"id":"T627","span":{"begin":13,"end":20},"obj":"Chemical"}],"attributes":[{"id":"A627","pred":"chebi_id","subj":"T627","obj":"http://purl.obolibrary.org/obo/CHEBI_60004"}],"text":"The reaction mixture gradually became opaque with a fine white precipitate and after 1 h was filtered."}

{"project":"LitCovid-sentences","denotations":[{"id":"T265","span":{"begin":0,"end":102},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"The reaction mixture gradually became opaque with a fine white precipitate and after 1 h was filtered."}