_:b56458449	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56458449	<http://www.w3.org/ns/oa#exact>	"TNF" .
_:b56458449	<http://www.w3.org/ns/oa#exact>	"tumor necrosis factor alpha" .