_:b57111644	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/10ed1bba1b361e87f9d99461b69b806be4c33711/2> .
_:b57111645	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57111645	<http://www.w3.org/ns/oa#exact>	"cell density" .
_:b57111644	<http://www.w3.org/ns/oa#hasSelector>	_:b57111645 .