A drawing can be signed.Logical formLearned from14 sentences. A (cover letter) can be signed.Logical formLearned from14 sentences. Controls can be signed.Logical formLearned from14 sentences. Zones can be signed.Logical formLearned from14 sentences. A fax can be signed.Logical formLearned from13 sentences. A communique can be signed.Logical formLearned from13 sentences. A will can be signed.Logical formLearned from13 sentences. (Bike routes) can be signed.Logical formLearned from13 sentences. A (return receipt) can be signed.Logical formLearned from13 sentences. (Tax returns) can be signed.Logical formLearned from13 sentences. Detours can be signed.Logical formLearned from13 sentences. Performances can be signed.Logical formLearned from13 sentences. A (hardcover copy) can be signed.Logical formLearned from13 sentences. Patches can be signed.Logical formLearned from13 sentences. Safety can be signed.Logical formLearned from13 sentences.