Assertion: parsnip's chemical | /r/Causes | blister
Facets:
value: after contact
type: TEMPORAL
value: on the skin
type: LOCATION
Source sentences:
text: The shoots and leaves of parsnip must be handled with care, as its sap contains furanocoumarins, phototoxic chemicals that cause blisters on the skin when it is exposed to sunlight, a condition known as phytophotodermatitis.
text: The plant sap contains toxic chemicals that are activated by sunlight and can cause serious burns and blisters to human skin after contact.