An autopilot may fail.Logical formLearned from10 sentences. An (opposition effort) may fail.Logical formLearned from10 sentences. A competitor may fail.Logical formLearned from10 sentences. A box may fail.Logical formLearned from10 sentences. Riders may fail tests.Logical formLearned from10 sentences. A parliament may fail for a time.Logical formLearned from10 sentences. Threats may fail.Logical formLearned from10 sentences. Persons may fail in responsibilities.Logical formLearned from10 sentences. A round of (coalition talks) may fail.Logical formLearned from10 sentences. A security-council may fail for a day.Logical formLearned from10 sentences. Rebels may fail in a bid.Logical formLearned from10 sentences. Some riders may fail tests.Logical formLearned from10 sentences. Defenders may fail.Logical formLearned from10 sentences. Some spacecraft may fail.Logical formLearned from10 sentences. (Truce talks) may fail.Logical formLearned from10 sentences.