_:b56801948	<http://www.w3.org/ns/oa#hasSelector>	_:b56801949 .
_:b56801949	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56801948	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/bef7e88d7fbaf9ea771317e2c7fe3f8d3e721ad3/5> .
_:b56801949	<http://www.w3.org/ns/oa#exact>	"Headache" .