A man shovels snow off of a roof while another stands in the contraption that allowed them to reach the high place.
A man is shoveling snow.
A man shovels snow off of a roof is an expanded description of where a man is shoveling snow.
exists e1 p1 s1 x1 x3 x5 x7.(n_place(x7) & a_high(s1) & Theme(s1,x7) & n_thing(x3) & n_contraption(x5) & n_stand(x3) & exists e3 e2 p2 x2 x4 x6.(in(e2,x5) & Topic(e3,p2) & Recipient(e3,x3) & Actor(e3,x6) & v_allow(e3) & exists e4.(Theme(e4,x7) & Actor(e4,x3) & v_reach(e4)) & (x5 = x6) & while(e2,x4) & n_stand(x4) & -(x4 = x3) & of(e2,x2) & n_roof(x2) & r_off(e2) & Actor(e2,x1) & v_snow(e2)) & Topic(e1,p1) & Actor(e1,x1) & v_shovel(e1) & n_man(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_shovel(e1) & n_snow(x2) & n_man(x1))