Question: What is the birthday of the rapper featured on the mixtape Crenshaw who goes by the name 9thmatic?
Sentence (from "9th Wonder"): Patrick Denard Douthit (born January 15, 1975), better known as 9th Wonder, is a hip hop record producer, record executive, DJ, lecturer, and rapper from Midway, North Carolina, U.S.
Relevant evidence: Yes