Premise: Unión Deportiva Vall de Uxó is a football team based in La Vall d'Uixó, in Castellón province, autonomous community of Valencian Community, Spain. Founded in 1975, it plays in Regional Preferente – Group 1. Its stadium is "José Mangriñán", which has a capacity of 4,000 seats.
Hypothesis: The stadium has a capacity that is never filled during game day.