Boulders may knock.Logical formLearned from4 sentences. Investors may knock on a door.Logical formLearned from4 sentences. Persons may knock a door.Logical formLearned from4 sentences. A person may knock a female to the ground.Logical formLearned from4 sentences. An one may knock at a door.Logical formLearned from4 sentences. A male may knock a weapon.Logical formLearned from4 sentences. Police may knock at a door.Logical formLearned from4 sentences. (Police officers) may knock on a door.Logical formLearned from4 sentences. A soldier may knock on a door.Logical formLearned from4 sentences. A person may knock on a (screen door).Logical formLearned from4 sentences. Persons may knock on a time.Logical formLearned from4 sentences. Teams may be knocked.Logical formLearned from4 sentences. A side may knock a side.Logical formLearned from4 sentences. (Wide receivers) may be knocked.Logical formLearned from4 sentences. A force of a crash may knock some carriages off a track.Logical formLearned from4 sentences.