A man in a shirt covered with leaves is taking a hamburger off the grill.
Leo was grilling burgers when all the leaves from the tree fell and covered him from top to bottom.
That the man is covered with leaves implies that leaves from the tree fell on the man. If the man was taking a hamburger off the grill then he must have been grilling burgers.
exists e1 e2 x1 x2 x3 x4 x5 x6.(n_grill(x6) & off(e2,x6) & Theme(e2,x5) & Actor(e2,x1) & v_take(e2) & n_hamburger(x5) & in(x1,x2) & with(e1,x4) & n_leaf(x4) & Theme(e1,x3) & v_cover(e1) & (x2 = x3) & n_shirt(x2) & n_man(x1))
exists e1 p1 x1 x2 x4 x5 x7 x8.(n_male(x1) & n_tree(x8) & n_leaf(x7) & n_tree(x5) & n_leaf(x4) & ne_per_leo(x1) & Theme(e1,x2) & Actor(e1,x1) & v_grill(e1) & all x6.((x6 = x7) -> exists e3 x9 x10.(from(e3,x9) & to(x9,x10) & n_bottom(x10) & n_top(x9) & Theme(e3,x1) & Actor(e3,x6) & v_cover(e3) & from(x6,x8))) & all x3.((x3 = x4) -> exists e2.(Actor(e2,x3) & v_fall(e2) & from(x3,x5))) & when(x2,p1) & n_burger(x2))