_:b56834809	<http://www.w3.org/ns/oa#exact>	"pH" .
_:b56834808	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/7f796fc1f34c8e45bc773c7f0f7f982b750f7957/1> .
_:b56834808	<http://www.w3.org/ns/oa#hasSelector>	_:b56834809 .
_:b56834809	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .