PMC:7253233 / 9123-9131 JSONTXT

{"project":"LitCovid-PubTator","denotations":[{"id":"299","span":{"begin":0,"end":8},"obj":"Chemical"}],"attributes":[{"id":"A299","pred":"tao:has_database_id","subj":"299","obj":"MESH:D009584"}],"namespaces":[{"prefix":"Tax","uri":"https://www.ncbi.nlm.nih.gov/taxonomy/"},{"prefix":"MESH","uri":"https://id.nlm.nih.gov/mesh/"},{"prefix":"Gene","uri":"https://www.ncbi.nlm.nih.gov/gene/"},{"prefix":"CVCL","uri":"https://web.expasy.org/cellosaurus/CVCL_"}],"text":"nitrogen"}

{"project":"LitCovid-PD-CHEBI","denotations":[{"id":"T20","span":{"begin":0,"end":8},"obj":"Chemical"}],"attributes":[{"id":"A20","pred":"chebi_id","subj":"T20","obj":"http://purl.obolibrary.org/obo/CHEBI_25555"}],"text":"nitrogen"}