A (chamber orchestra) may pertain-to a world-city.Logical formLearned from12 sentences. Concertos can be with an orchestra.Logical formLearned from12 sentences. A male may work with some orchestras.Logical formLearned from12 sentences. An orchestra may provide music.Logical formLearned from12 sentences. A member can be constituted-of-or-filled-with some orchestras.Logical formLearned from12 sentences. An orchestra can be in a tour.Logical formLearned from12 sentences. A female may tour with an orchestra.Logical formLearned from12 sentences. An orchestra may be conducted by maestro.Logical formLearned from12 sentences. A (tone poem) can be for orchestra.Logical formLearned from12 sentences. A male may start an orchestra.Logical formLearned from12 sentences. A song can be by an orchestra.Logical formLearned from12 sentences. Activities may pertain-to an orchestra.Logical formLearned from12 sentences. A (school orchestra) may pertain-to a female.Logical formLearned from12 sentences. Performance can be by an orchestra.Logical formLearned from12 sentences. An orchestra may pertain-to a meiningen-court.Logical formLearned from12 sentences.