A key driver may pertain-to the economy.Logical formLearned from145 sentences. A driver can be dead.Logical formLearned from144 sentences. A driver can be second-year.Logical formLearned from144 sentences. A driver can be for bin.Logical formLearned from143 sentences. A (taxi driver) can be in a world-city.Logical formLearned from143 sentences. Licenses may pertain-to some driver.Logical formLearned from143 sentences. A set can be constituted-of-or-filled-with drivers.Logical formLearned from143 sentences. A driver can be enhanced.Logical formLearned from142 sentences. A driver may start.Logical formLearned from141 sentences. Dozens can be constituted-of-or-filled-with drivers.Logical formLearned from141 sentences. Some changes can be among some drivers.Logical formLearned from140 sentences. A (license number) may pertain-to a driver.Logical formLearned from140 sentences. A driver can be unlicensed.Logical formLearned from140 sentences. Drivers can be stranded.Logical formLearned from140 sentences. A driver may be installed.Logical formLearned from140 sentences.