From a technical standpoint, all words are of course homographs. However, if you go with the definition of homograph being 'spelt the same but pronounced differently', then that applies mostly to the second column only. The first column are mostly homonyms, where they have different meaning but same pronunciation. On the other hand, "row" would make a typical homograph.
This is why I just went with saying "same spelling, different meaning." This was just a joke quiz, I didn't want to be too technical. Thank you for the info though!