Airport can be busy.Logical formLearned from9 sentences. A diplomacy can be busy.Logical formLearned from9 sentences. A (rail network) can be busy.Logical formLearned from9 sentences. A waiter can be busy.Logical formLearned from9 sentences. A central area can be busy.Logical formLearned from9 sentences. Departments can be busy.Logical formLearned from8 sentences. An outfit can be busy.Logical formLearned from8 sentences. (Fire fighters) can be busy.Logical formLearned from8 sentences. (Air routes) can be busy.Logical formLearned from8 sentences. Citizens can be busy.Logical formLearned from8 sentences. A visitor can be busy.Logical formLearned from8 sentences. A female can be busy with a family.Logical formLearned from8 sentences. A (fast-food restaurant) can be busy.Logical formLearned from8 sentences. A (business area) can be busy.Logical formLearned from8 sentences. An outside can be busy.Logical formLearned from8 sentences.