A cert can be signed.Logical formLearned from9 sentences. A ticket can be signed.Logical formLearned from9 sentences. A headshot can be signed.Logical formLearned from9 sentences. Xmls can be signed.Logical formLearned from9 sentences. A passport can be signed.Logical formLearned from9 sentences. An (award letter) can be signed.Logical formLearned from9 sentences. A (policy statement) can be signed.Logical formLearned from9 sentences. A confirmation can be signed.Logical formLearned from9 sentences. Instructions can be signed.Logical formLearned from9 sentences. A policy can be signed.Logical formLearned from9 sentences. Contracts can be signed.Logical formLearned from9 sentences. Pacts can be signed.Logical formLearned from9 sentences. Interim agreements can be signed.Logical formLearned from8 sentences. (Cooperation agreements) can be signed.Logical formLearned from8 sentences. An apology can be signed.Logical formLearned from8 sentences.