_:b57549028	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/6f37bb9fc327ebae2a9b98e0efd958ef35318a9e/3> .
_:b57549029	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57549028	<http://www.w3.org/ns/oa#hasSelector>	_:b57549029 .
_:b57549029	<http://www.w3.org/ns/oa#exact>	"oxygen" .