Assertion: chloroplast's purpose | /r/HasProperty | to guard the leaf
Facets:
value: against harmful uv light
type: TRANSITIVE-OBJECT
value: against pathogens
type: TRANSITIVE-OBJECT
value: against harsh environmental conditions
type: PURPOSE
Source sentences:
text: The purpose of trichomes is to guard the leaf against pathogens, harmful UV light and harsh environmental conditions, and to discourage hungry herbivores.