Converting collection in array into plain text with names of every row

Hi guys, I have a problem, but its main part has already been solved in another question on this forum, which I will attach below. Let’s take it as a basis. I copied almost the same way, and all the data goes to the iterator, but how can I transfer all this data in one command (regardless of how many results and collections there will be, because here each car of a person is checked, and there can logically be a different number of them, so manually entering is not an option) to the text aggregator, and also, I need the final result to include both the name of the row (for example, brand) and the result of the row (for example, bmw).

I really look forward to your answer and thank you in advance!

Also, if possible, not just give me the formula, but explain for my future work in make.com why we enter exactly this! Thanks again!

Link for another topic that we take as a basis : CLICK HERE


blueprint (2).json (60.6 KB)