Assertion: verse riddle | /r/CapableOf | contribute to the rooting and spread
Facets:
value: undoubtedly
type: DEGREE
Source sentences:
text: One of the earliest reliably attested composers of riddles was Dhu al-Rummah (c. 696-735), whose verse riddles 'undoubtedly contributed' to the 'rooting and spread' of Arabic literary riddles, though his exact contibution to this process is 'yet to be assessed'.