A (litter box) can be for a cat.Logical formLearned from4 sentences. A (litter problem) may pertain-to a city.Logical formLearned from4 sentences. A litter can be on a floor.Logical formLearned from4 sentences. A litter can be quality.Logical formLearned from4 sentences. A female may have a litter.Logical formLearned from4 sentences. A (plant litter) can be fresh.Logical formLearned from4 sentences. A litter can be dried.Logical formLearned from4 sentences. Litter may be stacked.Logical formLearned from4 sentences. Litter can be a material.Logical formLearned from4 sentences. (Poultry litter) may be used.Logical formLearned from4 sentences. A litter may be born.Logical formLearned from4 sentences. A litter can be straw.Logical formLearned from4 sentences. A litter can be vegetative.Logical formLearned from4 sentences. Litter may undergo a distribution.Logical formLearned from4 sentences. Litters can be constituted-of-or-filled-with pigs.Logical formLearned from4 sentences.