Guys are running in a marathon.
The guys are buring calories while running
Burning calories occurs while running.
exists e1 x1 x2.(in(e1,x2) & n_marathon(x2) & Actor(e1,x1) & v_run(e1) & n_guy(x1))
exists e2 e1 x1 x2.(n_guy(x1) & while(e1,e2) & Actor(e2,x1) & v_run(e2) & Theme(e1,x2) & Actor(e1,x1) & v_bure(e1) & n_calorie(x2))