_:b57072924	<http://www.w3.org/ns/oa#hasSelector>	_:b57072925 .
_:b57072924	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/bcfa3dbb3fadcb51bd684e07b654328d2bf4e0db/4> .
_:b57072925	<http://www.w3.org/ns/oa#exact>	"pH" .
_:b57072925	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .