Premise: Madrid is the focus of that fiercest of Span?­?­ish customs, the bullfight, and local ferias and fiestas like San Isidro, a celebration of the city's patron saint, are prepared and attended with the same zeal that they are in small Spanish towns.
Hypothesis: One of the most vicious Spanish customs, namely, the bullfight, takes place in Madrid. 
Label: entailment