Assertion: canker sore | /r/AtLocation | trunk
Facets:
value: often
type: TEMPORAL
Source sentences:
text: Cankers may occur on larger branches and trunks but will not extend below the soil line.
text: On some junipers, cankers may also form on the trunk, which results in complete branch dieback.
text: Both fungi kill sections of the bark of the tree, causing scattered branch death, or death of large sections of the tree if the canker occurs on the trunk.
text: Cankers often occur on the side of trunks wetted by irrigation sprinklers.