A person may check a challenge.Logical formLearned from5 sentences. A person may check a functionality of software.Logical formLearned from5 sentences. A person may check a box on an application.Logical formLearned from5 sentences. Persons may check rules.Logical formLearned from5 sentences. A person may check vital signs.Logical formLearned from5 sentences. A person may check (news sites).Logical formLearned from5 sentences. An one may check on a female.Logical formLearned from5 sentences. A person may check a word.Logical formLearned from5 sentences. A person may check a (weather radar).Logical formLearned from5 sentences. A person may check gums.Logical formLearned from5 sentences. A person may check a recording.Logical formLearned from5 sentences. Facial expressions may be checked before shooting.Logical formLearned from5 sentences. A person may check parameters.Logical formLearned from5 sentences. A person may check a receiver.Logical formLearned from5 sentences. Persons may check pockets.Logical formLearned from5 sentences.