Question: During the 2006–07 Spanish football season, Valencia CF competed in La Liga, the 2006–07 La Liga season, the 76th since its establishment, started on 27 August 2006, and finished on which date?
Sentence (from "2006–07 La Liga"): Celta de Vigo, Real Sociedad and Gimnàstic de Tarragona were relegated.
Relevant evidence: No