_:b57012104	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/cd2f584c21a2bc13a089348c021044609e55dc06/7> .
_:b57012104	<http://www.w3.org/ns/oa#hasSelector>	_:b57012105 .
_:b57012105	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57012105	<http://www.w3.org/ns/oa#exact>	"tumor cells" .