_:b56978113	<http://www.w3.org/ns/oa#exact>	"pH" .
_:b56978113	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56978112	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/b38c12ccd389c27706fcf2a50c2274352539fbc3/2> .
_:b56978112	<http://www.w3.org/ns/oa#hasSelector>	_:b56978113 .