A person may sign_up for a feature.Logical formLearned from5 sentences. A person may sign_up for an account.Logical formLearned from5 sentences. A person may sign_up for a registry.Logical formLearned from5 sentences. A person may sign_up with an (internet service provider).Logical formLearned from5 sentences. Workers may sign_up for buyouts.Logical formLearned from5 sentences. Candidates may sign_up for interviews.Logical formLearned from5 sentences. Students may sign_up for interviews.Logical formLearned from5 sentences. A person may sign_up a husband.Logical formLearned from5 sentences. Groups may be sign_uped as donors.Logical formLearned from5 sentences. A country may sign_up the rights of women.Logical formLearned from5 sentences. A (tourist office) may sign_up as a sponsor.Logical formLearned from5 sentences. Students may sign_up for a free lottery.Logical formLearned from5 sentences. Some parties may sign_up to a plan.Logical formLearned from5 sentences. Some countries may sign_up to a system.Logical formLearned from5 sentences. Governments may sign_up to some accord.Logical formLearned from5 sentences.