A (military machine) can be powerful.Logical formLearned from25 sentences. Contributors can be powerful.Logical formLearned from25 sentences. A guardian can be powerful.Logical formLearned from25 sentences. Systems can be powerful.Logical formLearned from25 sentences. A hard-liner can be powerful.Logical formLearned from25 sentences. A (forehand winner) can be powerful.Logical formLearned from25 sentences. A virus can be powerful.Logical formLearned from25 sentences. An influence may remain powerful.Logical formLearned from25 sentences. Beats can be powerful.Logical formLearned from25 sentences. A (business family) can be powerful.Logical formLearned from25 sentences. Friendships can be powerful.Logical formLearned from25 sentences. A (post office) can be powerful.Logical formLearned from25 sentences. A shareholder can be powerful.Logical formLearned from25 sentences. A no. can be powerful.Logical formLearned from24 sentences. A (rat poison) can be powerful.Logical formLearned from24 sentences.