def identify_greek_word(input)
      input.each_char do |char|
        if (!GREEK_CHARACTERS.include?(char))
          return false
        end
      end

      true
    end
def identify_greek_word(input)
      input.each_char do |char|
        if (!GREEK_CHARACTERS.include?(char))
          return false
        end
      end

      true
    end
Identifies words with only Greek lowercase characters.

 @param input The string that will examine
 @return true if the string contains only Greek characters