A duck may pertain-to a female.Logical formLearned from1 275 sentences. A duck may pertain-to a male.Logical formLearned from1 050 sentences. Ducks may pertain-to a person.Logical formLearned from969 sentences. Ducks can be unlimited.Logical formLearned from788 sentences. A duck may pertain-to a world-city.Logical formLearned from727 sentences. Ducks may pertain-to a world-city.Logical formLearned from612 sentences. Ducks may pertain-to a us-state.Logical formLearned from606 sentences. A duck can be dead.Logical formLearned from500 sentences. A duck may pertain-to a person.Logical formLearned from452 sentences. A duck can be odd.Logical formLearned from406 sentences. Ducks may pertain-to a male.Logical formLearned from376 sentences. Ducks may pertain-to persons.Logical formLearned from312 sentences. A duck can be roasted.Logical formLearned from261 sentences. A male can be a lame duck.Logical formLearned from251 sentences. Ducks can be dead.Logical formLearned from234 sentences.