An upgrade can be on a company.Logical formLearned from8 sentences. An upgrade may pertain-to sites.Logical formLearned from8 sentences. An upgrade may pertain-to an outlook.Logical formLearned from8 sentences. Persons may get upgrades.Logical formLearned from8 sentences. (Safety upgrades) can be for shuttles.Logical formLearned from8 sentences. An upgrade may pertain-to a version.Logical formLearned from7 sentences. An upgrade may undergo construction.Logical formLearned from7 sentences. The easts can be an upgrade of a device.Logical formLearned from7 sentences. An upgrade may pertain-to sovereign ratings.Logical formLearned from7 sentences. An upgrade can be delayed.Logical formLearned from7 sentences. A stadium may receive an upgrade.Logical formLearned from7 sentences. Upgrades may be added.Logical formLearned from7 sentences. An upgrade can be expensive.Logical formLearned from7 sentences. An upgrade can be completed.Logical formLearned from7 sentences. Upgrades may undergo a purchase.Logical formLearned from7 sentences.