The term gastrointestinal tract is identified in base64 scheme by the sequence Z2FzdHJvaW50ZXN0aW5hbCB0cmFjdA==, while the MD5 signature is equal to b41526f9b44aa7c15734f6dd3b31d493. The ASCII encoding of gastrointestinal tract in hexadecimal notation is 67617374726f696e74657374696e616c207472616374.