<prompt> Create a regex pattern to match all lowercase hexadecimal words  <response>: The regex pattern to match all lowercase hexadecimal words would be 0-9a-f. This pattern uses the start of string anchor and end of string anchor to match the entire string, and only allows characters in the range of 0-9 and a-f. The indicates one or more of the character set, meaning that it will match strings of any length as long as all characters are valid hexadecimal characters in lowercase. 