Assertion: poison ivy's cell | /r/CapableOf | present the antigen
Facets:
value: to t helper cells
type: TRANSITIVE-OBJECT
value: via its surface molecule
type: MANNER
Source sentences:
text: During the sensitization phase when an antigen enters the body, antigen presenting cell engulfs it and presents the antigen to T helper cells via its surface molecule MHC class II.