_:b56891541	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56891540	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/47d93c4d0e435b2da5ebc11b4404ed209447f5a0/6> .
_:b56891541	<http://www.w3.org/ns/oa#exact>	"exercise" .
_:b56891540	<http://www.w3.org/ns/oa#hasSelector>	_:b56891541 .