Two indians people trading their goods.
The people are swimming in the ocean.
Goods and ocean are different.
exists e1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x4) & Actor(e1,x3) & v_trade(e1) & n_goods(x4) & of(x4,x1) & n_thing(x1) & (x1 = x3) & n_people(x1) & of(x1,x2) & n_indian(x2) & card_eq_2(x1))
exists e1 x1 x2.(n_ocean(x2) & n_people(x1) & in(e1,x2) & Actor(e1,x1) & v_swim(e1))