The term countervailing duty is identified in base64 scheme by the sequence Y291bnRlcnZhaWxpbmcgZHV0eQ==, while the MD5 signature is equal to a1c7c1a541a371aea58e37591c2e6960. The ASCII encoding of countervailing duty in hexadecimal notation is 636f756e7465727661696c696e672064757479.