The term descriptive grammar is identified in base64 scheme by the sequence ZGVzY3JpcHRpdmUgZ3JhbW1hcg==, while the MD5 signature is equal to e40002e28d21c7d1d58f9d3e4de168d4. The ASCII encoding of descriptive grammar in hexadecimal notation is 6465736372697074697665206772616d6d6172.