(Two word responses only TFP, other than sideposts like this. You were correct to use the word Mark first, but the objective is to use another single word that creates a common phrase. You could have used Mark up/down/Antony/Twain... Since the terms "Mark of Sparta" or "Mark Sparta" don't bring up any Google results other than a few chat pages, this was a very poor choice, but I'll go with it anyway)
