a guy on a roof doing repairs.
A guy is on top of his house outside doing repairs.
guy on a roof doing repairs.which simply means guy is on top of his house outside doing repairs
exists e1 x1 x2 x3 x4.(a_topic(x1) & on(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_do(e1) & n_repair(x4) & (x2 = x3) & n_roof(x2) & n_guy(x1))
exists p1 x1 x3.(exists e1 x2 x4 x5.(on(x1,x2) & of(x2,x3) & outside(x3,e1) & Theme(e1,x5) & Actor(e1,x4) & v_do(e1) & n_repair(x5) & n_thing(x4) & n_top(x2)) & n_house(x3) & of(x3,x1) & n_male(x1) & n_guy(x1))