Two people are tandem skydiving over a body of water.
There are people looking at the gulf of Mexico.
The fact that two people are tandem skydiving over a body of water doesn't imply that there are other people looking and the body of water is at the gulf of Mexico.
exists e1 p1 x1.(exists e2 x2 x3.(over(e2,x2) & of(x2,x3) & n_water(x3) & n_body(x2) & Actor(e2,x1) & v_skydive(e2)) & Topic(e1,p1) & Actor(e1,x1) & v_tandem(e1) & n_people(x1) & card_eq_2(x1))
exists p1 x1 x4 x5.(ne_geo_mexico(x5) & n_gulf(x4) & exists e1 x2 x3.((x1 = x2) & at(e1,x4) & of(x4,x5) & Actor(e1,x3) & v_look(e1) & (x2 = x3) & n_people(x2)))