_:b57939600	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/7b338fe63bf62180614956c9d8a8fee7b9c0da90/0> .
_:b57939601	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57939600	<http://www.w3.org/ns/oa#hasSelector>	_:b57939601 .
_:b57939601	<http://www.w3.org/ns/oa#exact>	"gastrointestinal symptoms" .