Assertion: elf | /r/HasProperty | a cause of illness
Facets:
value: often
type: TEMPORAL
value: certainly
type: MANNER
Source sentences:
text: Elves were certainly often seen as a cause of illness, and indeed the English word oaf seems to have originated as a form of elf: the word elf came to mean 'changeling left by an elf' and then, because changelings were noted for their failure to thrive, to its modern sense 'a fool, a stupid person; a large, clumsy man or boy'.