a swimmer wearing a black hat and goggles is doing the butterfly stroke.
The swimmer is training for the Olympics
Just because a swimmer is doing the butterfly stroke doesn't imply training for the Olympics.
exists e1 e2 s1 x1 x2 x3 x4 x5 x6 x7.(n_stroke(x6) & of(x6,x7) & n_butterfly(x7) & Theme(e2,x6) & Actor(e2,x1) & v_do(e2) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & subset_of(x5,x3) & n_goggles(x5) & subset_of(x4,x3) & n_hat(x4) & a_black(s1) & Theme(s1,x4) & (x1 = x2) & n_swimmer(x1))
exists e1 x1 x2.(ne_nam_olympics(x2) & n_swimmer(x1) & for(e1,x2) & Actor(e1,x1) & v_train(e1))