Assertion: poison ivy's plant | /r/CapableOf | act on the skin
Facets:
value: thereupon
type: TEMPORAL
Source sentences:
text: The toxic substance may be obtained directly from the plant, which thereupon acts on the skin (primary photosensitivity), or the toxicity may result from liver damage caused by the metabolism of a toxic plant and failure of the breakdown products to be eliminated by the liver (hepatic photosensitivity).