(Metal rings) may be pierced into a back.Logical formLearned from2 sentences. A (river bed) may be pierced by rigs.Logical formLearned from2 sentences. (Seed pods) may pierce a (rubber sole).Logical formLearned from2 sentences. A whistle of (freight trains) may be pierced.Logical formLearned from2 sentences. A male may pierce of a male.Logical formLearned from2 sentences. A ball may be pierced through a tongue.Logical formLearned from2 sentences. A pop may be pierced.Logical formLearned from2 sentences. A hook may pierce a tongue.Logical formLearned from2 sentences. A bill may pierce a shield of immunity.Logical formLearned from2 sentences. A dagger may be pierced.Logical formLearned from2 sentences. A body may be pierced by objects.Logical formLearned from2 sentences. Sounds of children may pierce a silence.Logical formLearned from2 sentences. A rocket may pierce clouds.Logical formLearned from2 sentences. Some parts of bodies may be pierced.Logical formLearned from2 sentences. Word of a person may pierce.Logical formLearned from2 sentences.