A possession can be a concussion.Logical formLearned from2 sentences. Headaches can be from a concussion.Logical formLearned from2 sentences. Concussions may go undetected.Logical formLearned from2 sentences. Crockery may undergo a concussion.Logical formLearned from2 sentences. A concussion may threaten a dissolution of a continent.Logical formLearned from2 sentences. A concussion can be fierce.Logical formLearned from2 sentences. Signs of a concussion can be obvious.Logical formLearned from2 sentences. Persons can be with a concussion.Logical formLearned from2 sentences. A plus can be with concussions.Logical formLearned from2 sentences. Someone can be with a concussion.Logical formLearned from2 sentences. Teens may get concussions.Logical formLearned from2 sentences. Concussions can be a type of (head injury).Logical formLearned from2 sentences. Someone can be with a concussion.Logical formLearned from2 sentences. Kids may get concussions.Logical formLearned from2 sentences. A concussion can be a loss of (brain function).Logical formLearned from2 sentences.