Text: In winter the Salinas de la Mata, just south of Guardamar, often (but not always) attracts thousands of migratory flamingos, a few of which sometimes stay to breed.
Entailment: Migratory flamingos often flock to the Salinas de la Mata in winter.
Contradiction: Migratory flamingos always avoid the Salinas de la Mata in winter, preferring Disney World instead.