A (concert crowd) may pertain-to a world-city.Logical formLearned from7 sentences. A concert may air.Logical formLearned from7 sentences. A concert can be a part.Logical formLearned from7 sentences. A concert can be by a (pop star).Logical formLearned from7 sentences. An organizer may pertain-to concerts.Logical formLearned from7 sentences. Attacks can be in concert.Logical formLearned from7 sentences. A park can be for concerts.Logical formLearned from7 sentences. Concerts can be by (university bands).Logical formLearned from7 sentences. Seating may give a (concert hall) a total of some seats.Logical formLearned from7 sentences. A (gala concert) can be black-tie.Logical formLearned from7 sentences. A (rock concert) may kill some persons.Logical formLearned from7 sentences. Preparations can be for a concert.Logical formLearned from7 sentences. (Rock singer) may organize a live-aid concert.Logical formLearned from7 sentences. A female may perform a (solo concert).Logical formLearned from7 sentences. A concert may undergo a taping.Logical formLearned from7 sentences.