Assertion: riddle | /r/CapableOf | begin with the eighth-century grammarian
Facets:
value: allegedly
type: MANNER
Source sentences:
text: Riddles are discussed by literary and grammatical commentators — allegedly beginning with the eighth-century grammarian al-Khalīl ibn Ahmad (d. 786), (who was later even to be credited with the invention of the (rhymed) riddle).