Assertion: parsnip's chemical | /r/HasProperty | activated by ultraviolet rays
Facets:
value: in sunlight
type: LOCATION
Source sentences:
text: Like giant hogweed sap, cow parsnip sap contains furanocoumarins (fyur-a-no-coo-MAR-inz), phototoxic chemicals that are activated by ultraviolet rays in sunlight.