The term oral communication is identified in base64 scheme by the sequence b3JhbCBjb21tdW5pY2F0aW9u, while the MD5 signature is equal to 40f2a2a0737acbad66701fb91b1bdaad. The ASCII encoding of oral communication in hexadecimal notation is 6f72616c20636f6d6d756e69636174696f6e.