The term polyunsaturated fatty acid is identified in base64 scheme by the sequence cG9seXVuc2F0dXJhdGVkIGZhdHR5IGFjaWQ=, while the MD5 signature is equal to ab288fe9878a520ec192b470dc0134d0. The ASCII encoding of polyunsaturated fatty acid in hexadecimal notation is 706f6c79756e7361747572617465642066617474792061636964.