Assertion: poison ivy's resin | /r/AtLocation | leaf
Facets:
value: of sumac plants
type: LOCATION
value: of oak
type: LOCATION
value: of the poison ivy
type: LOCATION
Source sentences:
text: Urushiol oil or resin is found in the leaves, roots, and woody parts (i.e., vines and stems) of the poison ivy, oak, and sumac plants.