_:b57556780	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/7859dc5bc2c21103513a0d3d27e148496c2c617c/1> .
_:b57556781	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57556780	<http://www.w3.org/ns/oa#hasSelector>	_:b57556781 .
_:b57556781	<http://www.w3.org/ns/oa#exact>	"Chemistry" .