Upgrades may pertain-to networks.Logical formLearned from6 sentences. Buyers may receive an upgrade.Logical formLearned from6 sentences. An upgrade can be through some tunnels.Logical formLearned from6 sentences. An end may pertain-to an (upgrade cycle).Logical formLearned from6 sentences. A system may undergo an upgrade.Logical formLearned from6 sentences. Upgrades may be implemented.Logical formLearned from6 sentences. An upgrade may undergo a use.Logical formLearned from6 sentences. A person may install an (upgrade card).Logical formLearned from6 sentences. An upgrade can be to an (accelerator complex).Logical formLearned from6 sentences. A heart may pertain-to an upgrade.Logical formLearned from6 sentences. An upgrade can be to a package.Logical formLearned from6 sentences. Upgrades can be to weapons.Logical formLearned from6 sentences. Upgrades can be dynamic.Logical formLearned from6 sentences. Customers may get an upgrade.Logical formLearned from6 sentences. Upgrades can be to a plant.Logical formLearned from6 sentences.