A worker in a blue jumpsuit standing on the deck of a boat.
They are fixing the boat.
Standing on a boat does not imply fixing the boat.
exists s1 x1 x2 x3 x4 x5.(n_deck(x4) & a_topic(x1) & in(x1,x2) & on(x2,x4) & of(x4,x5) & n_boat(x5) & n_standing(x2) & of(x2,x3) & n_jumpsuit(x3) & a_blue(s1) & Theme(s1,x2) & n_worker(x1))
exists e1 x1 x2.(n_boat(x2) & n_thing(x1) & Theme(e1,x2) & Actor(e1,x1) & v_fix(e1))