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: Unión Deportiva Vall de Uxó plays at a stadium that is filled to capacity.
reason: We cannot tell if it is always filled to capacity or not. This depends on the day. I'm not sure the system could differentiate between that and the 4k capacity.