_:b56784332	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/dff258238ea73df01556da00a99a5f8e75e121da/0> .
_:b56784333	<http://www.w3.org/ns/oa#exact>	"pH" .
_:b56784332	<http://www.w3.org/ns/oa#hasSelector>	_:b56784333 .
_:b56784333	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .