A crowd watches an outdoor concert.
The people are watching the race.
A race and a concert are two different activities, they are watching either one or the other.
exists e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_watch(e1) & n_concert(x2) & a_outdoor(s1) & Theme(s1,x2) & n_crowd(x1))
exists e1 x1 x2.(n_race(x2) & n_people(x1) & Theme(e1,x2) & Actor(e1,x1) & v_watch(e1))