The term imperfective aspect is identified in base64 scheme by the sequence aW1wZXJmZWN0aXZlIGFzcGVjdA==, while the MD5 signature is equal to fd6e26cb3118eb240391cf008a220d4f. The ASCII encoding of imperfective aspect in hexadecimal notation is 696d7065726665637469766520617370656374.