PMC:7796058 / 18041-18193 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T110","span":{"begin":0,"end":152},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Basic concepts, data models, and standards of spatial information need to be redefined in order to meet the requirements of indoor spatial applications."}