An airplane can be solid.Logical formLearned from7 sentences. An economic agreement can be solid.Logical formLearned from7 sentences. A second base can be solid.Logical formLearned from7 sentences. Rebounds can be solid.Logical formLearned from7 sentences. (Trading results) can be solid.Logical formLearned from7 sentences. A heel can be solid.Logical formLearned from7 sentences. (Fuel rocket motor technologies) can be solid.Logical formLearned from7 sentences. A (withdrawal offer) can be solid.Logical formLearned from7 sentences. A (loop combination) can be solid.Logical formLearned from7 sentences. A defensive wall can be solid.Logical formLearned from7 sentences. Solid grounds can be for hope.Logical formLearned from7 sentences. A case may be based on solid ground.Logical formLearned from7 sentences. A country can be on solid ground.Logical formLearned from7 sentences. A scientific study can be solid.Logical formLearned from7 sentences. A (comeback effort) can be solid.Logical formLearned from7 sentences.