An explosion may knock a male off feet.Logical formLearned from6 sentences. Keys may be knocked.Logical formLearned from6 sentences. A temblor may knock trains off tracks.Logical formLearned from6 sentences. A quake may knock trains off tracks.Logical formLearned from6 sentences. A male may knock a hell.Logical formLearned from6 sentences. The icelandic economy may be knocked.Logical formLearned from6 sentences. A male may knock a US-president.Logical formLearned from6 sentences. A victory may knock a US-president.Logical formLearned from6 sentences. A country may knock persons.Logical formLearned from6 sentences. A person may knock a team.Logical formLearned from6 sentences. A seed may be knocked.Logical formLearned from5 sentences. A player may knock.Logical formLearned from5 sentences. A person may be knocked on a head.Logical formLearned from5 sentences. A male may be knocked off a horse.Logical formLearned from5 sentences. A male may be knocked from a horse.Logical formLearned from5 sentences.