A key can be signed.Logical formLearned from24 sentences. Limited editions can be signed.Logical formLearned from24 sentences. A serigraph can be signed.Logical formLearned from24 sentences. An oath can be signed.Logical formLearned from24 sentences. Types can be signed.Logical formLearned from24 sentences. Ones can be signed.Logical formLearned from23 sentences. A panic can be signed.Logical formLearned from23 sentences. (Union cards) can be signed.Logical formLearned from23 sentences. A (paper copy) can be signed.Logical formLearned from23 sentences. A free-trade agreement can be signed.Logical formLearned from23 sentences. A set can be signed.Logical formLearned from22 sentences. A program can be signed.Logical formLearned from22 sentences. Shirts can be signed.Logical formLearned from22 sentences. A title can be signed.Logical formLearned from22 sentences. Waivers can be signed.Logical formLearned from22 sentences.