_:b57390613	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57390612	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/0e0d8239bb05a29c391a63bad05f4871f660c976/3> .
_:b57390612	<http://www.w3.org/ns/oa#hasSelector>	_:b57390613 .
_:b57390613	<http://www.w3.org/ns/oa#exact>	"melatonin" .