Brian Mc Cabe
There are those who look at things the way they are and ask why . . . I dream of things that never were and ask why not
Market Woman is silly powerful. My favourite is to combo it with Market Stall, trade an early grain for a vegetable and get two grain as well. And, if your opponent(s) aren't paying attention, it might just get passed back round to you at some point!
I don't know the text of Market Stall; but the Market Woman, as quoted above, gives two extra grain if a vegetable is taken by a family member's action. If you're trading a grain for a vegetable, you haven't gotten the grain through a family member's action.
Not knowing the card's text, I stand to be corrected.