Tourist speculating their surrounding at a pier.
Tourists are standing on a pier and looking for boats.
Speculating does not imply standing on a pier or looking for boats.
exists e1 x1 x2 x3.(ne_nam_tourist(x1) & Theme(e1,x3) & Actor(e1,x1) & v_speculate(e1) & at(x3,x2) & n_pier(x2) & n_surround(x3) & of(x3,x2) & n_thing(x2))
exists e2 e1 x1 x2 x3 x4.(for(e2,x4) & n_boat(x4) & Actor(e2,x3) & v_look(e2) & n_tourist(x3) & on(e1,x2) & n_pier(x2) & Actor(e1,x1) & v_stand(e1) & n_tourist(x1))