Tandems may pertain-to a league.Logical formLearned from12 sentences. Economics may pertain-to a league.Logical formLearned from12 sentences. A director may pertain-to a league.Logical formLearned from12 sentences. A number may play in professional leagues.Logical formLearned from12 sentences. Duos can be in a league.Logical formLearned from12 sentences. Some teams may remain in a league.Logical formLearned from12 sentences. A league may undergo an operation.Logical formLearned from12 sentences. A veteran can be in a league.Logical formLearned from12 sentences. A league may do a job.Logical formLearned from12 sentences. (League scoring) can be with some goals.Logical formLearned from12 sentences. A US-city may rank in a league.Logical formLearned from12 sentences. A year may lead a league.Logical formLearned from12 sentences. An attraction may pertain-to a league.Logical formLearned from12 sentences. A league may get home-field advantage.Logical formLearned from12 sentences. A female can be second in a league.Logical formLearned from12 sentences.