A large number of people gathered at an event, eating under an umbrella.
They are outside
Not all gatherings of people under an umbrella are outside.
exists e2 e1 s1 x1 x2 x3 x4.(for(e1,e2) & under(e2,x4) & n_umbrella(x4) & Actor(e2,x1) & v_eat(e2) & at(e1,x3) & n_event(x3) & Actor(e1,x1) & v_gather(e1) & of(x1,x2) & n_people(x2) & n_number(x1) & a_large(s1) & Theme(s1,x1))
exists s1 x1.(n_thing(x1) & Theme(s1,x1) & a_outside(s1))