Sprinkler goes off in the middle of a crowd.
The ceiling sprinkler shoots water on the fire.
Not all sprinklers are found in the ceiling, and they are not only used to put out a fire.
exists e1 s1 x1 x2 x3.(n_middle(x2) & ne_nam_sprinkler(x1) & in(e1,x2) & of(x2,x3) & n_crowd(x3) & a_off(s1) & Manner(e1,s1) & Actor(e1,x1) & v_go(e1))
exists e1 x1 x2 x3 x4.(n_fire(x4) & n_sprinkler(x1) & of(x1,x2) & n_ceiling(x2) & on(e1,x4) & Theme(e1,x3) & Actor(e1,x1) & v_shoot(e1) & n_water(x3))