_:b56700440	<http://www.w3.org/ns/oa#hasSelector>	_:b56700441 .
_:b56700441	<http://www.w3.org/ns/oa#exact>	"headache" .
_:b56700441	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56700440	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/0b1e325123aa156f3ed33891ef9e02f407a3ca80/0> .