Part may pertain-to a filter.Logical formLearned from15 sentences. An (air filter) may pertain-to a car.Logical formLearned from15 sentences. A filter can be sterile.Logical formLearned from15 sentences. Filters can be contaminated.Logical formLearned from15 sentences. A filter may pertain-to a country.Logical formLearned from14 sentences. An order may pertain-to a filter.Logical formLearned from14 sentences. A filter can be composite.Logical formLearned from14 sentences. Oysters can be (filter feeders).Logical formLearned from14 sentences. Filters can be available.Logical formLearned from14 sentences. A filter may undergo a placement.Logical formLearned from14 sentences. Filters can be designed.Logical formLearned from14 sentences. A filter can be sensitive to wavelengths of infrared light.Logical formLearned from14 sentences. Filters may be cleaned.Logical formLearned from14 sentences. A filter can be constituted-of-or-filled-with some sort.Logical formLearned from14 sentences. Filters may pertain-to a mask.Logical formLearned from14 sentences.