Opportunity may knock on a door.Logical formLearned from11 sentences. A brother may be knocked unconscious.Logical formLearned from11 sentences. An one may knock.Logical formLearned from11 sentences. A national team may be knocked.Logical formLearned from11 sentences. A male may knock a (tee shot).Logical formLearned from11 sentences. Workers may knock wagons.Logical formLearned from11 sentences. A male may knock a second.Logical formLearned from11 sentences. A quarterback may be knocked.Logical formLearned from11 sentences. A gun may be knocked from a hand.Logical formLearned from11 sentences. A US-city may knock a US-city.Logical formLearned from11 sentences. An opportunity may knock.Logical formLearned from11 sentences. Champions may be knocked.Logical formLearned from11 sentences. A force of explosions may knock soldiers.Logical formLearned from11 sentences. A person may knock guys.Logical formLearned from11 sentences. A player may knock.Logical formLearned from10 sentences.