Three people windsurfing in the ocean, and one is airborne.
The ocean is blue.
Not all oceans are blue.
exists e1 s1 x1 x2 x3 x4 x5.(n_ocean(x4) & Theme(s1,x1) & a_airborne(s1) & subset_of(x5,x1) & n_thing(x5) & card_eq_1(x5) & subset_of(x2,x1) & in(e1,x4) & Actor(e1,x3) & v_windsurf(e1) & (x2 = x3) & n_people(x2) & card_eq_3(x2))
exists s1 x1.(n_ocean(x1) & Theme(s1,x1) & a_blue(s1))