_:b56961396	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/30af6422cd27526527c45fcedc0418a6f8388d74/2> .
_:b56961397	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56961396	<http://www.w3.org/ns/oa#hasSelector>	_:b56961397 .
_:b56961397	<http://www.w3.org/ns/oa#exact>	"potassium" .