A client may be sign_uped.Logical formLearned from6 sentences. A person may sign_up under a team.Logical formLearned from6 sentences. A deadline may approach for sign_upping for a list.Logical formLearned from6 sentences. A person may sign_up at a (list website).Logical formLearned from6 sentences. Consumers may sign_up for a list.Logical formLearned from6 sentences. Persons may sign_up for a league.Logical formLearned from6 sentences. A person may sign_up to a course.Logical formLearned from6 sentences. A person may sign_up for an option.Logical formLearned from6 sentences. A person may sign_up for a club.Logical formLearned from6 sentences. Persons may sign_up for a class.Logical formLearned from6 sentences. A person may sign_up for a (trial membership).Logical formLearned from6 sentences. A person may sign_up for some social-networking site.Logical formLearned from6 sentences. A person may sign_up for an apartment.Logical formLearned from6 sentences. Someone may sign_up by sending an e-mail.Logical formLearned from6 sentences. Blacks may sign_up in numbers.Logical formLearned from6 sentences.