Parents and children are shopping in a flea market for games.
Some people are at a market.
People shopping in flea market. Parents and children defines a group of people, the flea market is the market in which they shop.
exists e1 x1 x2 x3 x4 x5 x6.(in(e1,x4) & for(x4,x6) & n_game(x6) & n_market(x4) & of(x4,x5) & n_flea(x5) & Actor(e1,x1) & v_shop(e1) & n_child(x3) & n_parent(x2) & subset_of(x3,x1) & subset_of(x2,x1))
exists p1 x1.(exists x2.(at(x1,x2) & n_market(x2)) & n_people(x1))