Four guys in white lab coats with lockers in the background holding something on fire.
Four scientist working at a lab are starting a fire
If something is on fire, then someone had to be starting that fire.
exists e1 s1 x1 x2 x3 x4 x5 x6 x7 x8.(n_background(x5) & a_topic(x1) & on(e1,x8) & n_fire(x8) & Theme(e1,x7) & Actor(e1,x6) & v_hold(e1) & n_thing(x7) & (x1 = x6) & in(x1,x5) & with(x1,x4) & n_locker(x4) & in(x1,x2) & n_coat(x2) & of(x2,x3) & n_lab(x3) & a_white(s1) & Theme(s1,x2) & n_guy(x1) & card_eq_4(x1))
exists e2 e1 x1 x2 x3 x4.(Theme(e2,x4) & Actor(e2,x1) & v_start(e2) & n_fire(x4) & at(e1,x3) & n_lab(x3) & Actor(e1,x2) & v_work(e1) & (x1 = x2) & n_scientist(x1) & card_eq_4(x1))