_:b56771008	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/06d09c26eec1823530c12904407cf21c16b34ac5/0> .
_:b56771009	<http://www.w3.org/ns/oa#exact>	"linear opacities" .
_:b56771009	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56771008	<http://www.w3.org/ns/oa#hasSelector>	_:b56771009 .