_:b56738228	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/ace773180b33aa4f55089e470641075b52101bb2/0> .
_:b56738229	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56738229	<http://www.w3.org/ns/oa#exact>	"potassium" .
_:b56738228	<http://www.w3.org/ns/oa#hasSelector>	_:b56738229 .