Upgrades may be meant for international travel.Logical formLearned from7 sentences. An upgrade can be to a model.Logical formLearned from7 sentences. (Business class upgrades) may pertain-to an airline.Logical formLearned from7 sentences. An upgrade may pertain-to shares.Logical formLearned from7 sentences. Upgrades may pertain-to a week.Logical formLearned from7 sentences. A person may have upgrades.Logical formLearned from7 sentences. (Dollar upgrade) to (dollar fix) may be bricked.Logical formLearned from7 sentences. An upgrade can be constituted-of-or-filled-with windows.Logical formLearned from7 sentences. An upgrade may improve service.Logical formLearned from7 sentences. Some upgrades may be included.Logical formLearned from7 sentences. Upgrades can be to an interior.Logical formLearned from7 sentences. An upgrade may pertain-to a deity.Logical formLearned from7 sentences. Upgrades can be manual.Logical formLearned from7 sentences. A person can be eligible for an upgrade.Logical formLearned from7 sentences. A person may order an upgrade.Logical formLearned from7 sentences.