A person may sign_up on a visit.Logical formLearned from4 sentences. A person may sign_up for itunes.Logical formLearned from4 sentences. A person may sign_up with a team.Logical formLearned from4 sentences. A male may sign_up for a plan.Logical formLearned from4 sentences. Some percent of homes may sign_up for a (video service).Logical formLearned from4 sentences. A person may be sign_uped for a cruise.Logical formLearned from4 sentences. Persons may sign_up for events.Logical formLearned from4 sentences. A customer may sign_up for a service.Logical formLearned from4 sentences. A person may sign_up fundraisers.Logical formLearned from4 sentences. Persons may sign_up for a sport.Logical formLearned from4 sentences. A military-or-other-action-organization may sign_up some personnel.Logical formLearned from4 sentences. Customers may sign_up for (checking accounts).Logical formLearned from4 sentences. Persons may sign_up for a membership.Logical formLearned from4 sentences. Persons may sign_up for programs.Logical formLearned from4 sentences. Some girls may sign_up for a (cheerleading squad).Logical formLearned from4 sentences.