I was going to say that "kart" is not a word, but I looked it up, having screwed up that way before, and it seems to mean "a miniature car used for racing". I do not know what "link hyphen" means, though. " seems to be asking what can go where the question marks are, but I can't make sense of that.
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I was going to say that "kart" is not a word, but I looked it up, having screwed up that way before, and it seems to mean "a miniature car used for racing". I do not know what "link hyphen" means, though. Your "kart-????" seems to be asking what can go where the question marks are, but I can't make sense of that. Please clarify.