A man wearing a white cap and white sweatshirt working on a roof.
A man is fixing his roof after a storm.
Just because a man is working on a roof it does not mean he is fixing his roof.
exists e1 e2 s1 s2 x1 x2 x3 x4.(on(e2,x4) & n_roof(x4) & Actor(e2,x3) & v_work(e2) & n_sweatshirt(x3) & a_white(s2) & Theme(s2,x3) & Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_cap(x2) & a_white(s1) & Theme(s1,x2) & n_man(x1))
exists e1 x1 x2 x3.(after(e1,x3) & n_storm(x3) & Theme(e1,x2) & Actor(e1,x1) & v_fix(e1) & n_roof(x2) & of(x2,x1) & n_male(x1) & n_man(x1))