A girl is wearing her life vest while she rides a jet ski.
A girl is wearing a sports coat
The girl cannot simultaneously be wearing a vest and a sports coat
exists e1 p1 x1 x2 x3.(exists e2 x4 x5.(Theme(e2,x4) & Actor(e2,x1) & v_ride(e2) & n_ski(x4) & of(x4,x5) & n_jet(x5)) & n_female(x1) & n_female(x1) & while(e1,p1) & Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_vest(x2) & of(x2,x3) & n_life(x3) & of(x2,x1) & n_girl(x1))
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_coat(x2) & of(x2,x3) & n_sport(x3) & n_girl(x1))