_:b56290420	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/abeb360d9da928907bd8a03e22c2a4cf60a6a8d6/4> .
_:b56290421	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56290420	<http://www.w3.org/ns/oa#hasSelector>	_:b56290421 .
_:b56290421	<http://www.w3.org/ns/oa#exact>	"biphasic calcium phosphate" .