_:b56383377	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56383376	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/b056f30073d98b7c8a56c2e01cdb20297ab5f948/0> .
_:b56383376	<http://www.w3.org/ns/oa#hasSelector>	_:b56383377 .
_:b56383377	<http://www.w3.org/ns/oa#exact>	"melatonin" .