_:b56949568	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/3c7ada8bfcdce6b47c8ad3fa6cdc22dcf0d1fe0c/5> .
_:b56949569	<http://www.w3.org/ns/oa#exact>	"exercise" .
_:b56949568	<http://www.w3.org/ns/oa#hasSelector>	_:b56949569 .
_:b56949569	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .