(Apartment buildings) may use natural gas.Logical formLearned from7 sentences. A search can be at an apartment.Logical formLearned from7 sentences. A (hotel apartment) may pertain-to a male.Logical formLearned from7 sentences. An (apartment building explosion) may undergo a (death toll).Logical formLearned from7 sentences. A building may have some apartments.Logical formLearned from7 sentences. An apartment can be closed.Logical formLearned from7 sentences. Prices can be for apartments.Logical formLearned from7 sentences. An average can be constituted-of-or-filled-with some apartments.Logical formLearned from7 sentences. An (apartment building) may pertain-to a garden.Logical formLearned from7 sentences. An apartment may pertain-to a grandmother.Logical formLearned from7 sentences. An (apartment complex) can be in a city.Logical formLearned from7 sentences. A friend may pertain-to an apartment.Logical formLearned from7 sentences. Next door can be to apartments.Logical formLearned from7 sentences. A floor may have some apartments.Logical formLearned from7 sentences. An apartment can be on a bike.Logical formLearned from7 sentences.