A male may knock heads.Logical formLearned from13 sentences. A female may knock on an (office door).Logical formLearned from13 sentences. A man may knock at a door.Logical formLearned from13 sentences. Quarterback may be knocked.Logical formLearned from13 sentences. A bogey may knock a male.Logical formLearned from13 sentences. Some countries may knock on a door.Logical formLearned from13 sentences. A male may knock persons.Logical formLearned from13 sentences. A crash may knock a male.Logical formLearned from13 sentences. A person may be knocked on the ground.Logical formLearned from13 sentences. Teams may be knocked.Logical formLearned from12 sentences. A male may be knocked off balance.Logical formLearned from12 sentences. A male may be knocked off feet.Logical formLearned from12 sentences. A head may be knocked.Logical formLearned from12 sentences. Someone may knock some sense.Logical formLearned from12 sentences. A person may knock a hole.Logical formLearned from12 sentences.