A male may sustain a concussion.Logical formLearned from23 sentences. A male may recover from a concussion.Logical formLearned from23 sentences. A severity may pertain-to a concussion.Logical formLearned from21 sentences. A concussion can be in some months.Logical formLearned from21 sentences. Quarterback may suffer a concussion.Logical formLearned from20 sentences. Some concussions can be in some games.Logical formLearned from20 sentences. A person may have concussion.Logical formLearned from20 sentences. A male may have concussion.Logical formLearned from20 sentences. A friend may suffer a concussion.Logical formLearned from19 sentences. A concussion can be in a quarter of a game.Logical formLearned from19 sentences. A concussion can be on a brain.Logical formLearned from19 sentences. Concussions can be in football.Logical formLearned from19 sentences. A male may suffer a concussion.Logical formLearned from19 sentences. A concussion can be on a play.Logical formLearned from19 sentences. A concussion can be on a hit.Logical formLearned from19 sentences.