Question: What date was the draft, in which Nemanja Dangubić was selected by the Philadelphia 76ers, held? 
Sentence (from "2014 NBA draft"): The Cleveland Cavaliers won the draft lottery to earn the first overall pick in the draft; this is the fourth number-one pick for Cleveland since 2003 and third number-one pick over a four-year span from 2011–2014.
Relevant evidence: No