_:b57585213	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57585212	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/b33f78304f8fdb97631ad4b5b5ed9d8d85d0622f/1> .
_:b57585213	<http://www.w3.org/ns/oa#exact>	"differentiation" .
_:b57585212	<http://www.w3.org/ns/oa#hasSelector>	_:b57585213 .