CORD-19:6e2db98aa242e3e84116afdfad5e250943c55ac5 / 19829-19918 JSONTXT

{"project":"Epistemic_Statements","denotations":[{"id":"T58","span":{"begin":0,"end":89},"obj":"Epistemic_statement"}],"text":"., u n }, we wish to know whether there exist k of the subsets whose union is equal to U."}