A man is on a roof doing construction.
Handyman on a rooftop.
Handyman generally means a professional and you usually can't tell a person's profession unless they wear a uniform.
exists p1 x1.(exists e1 x2 x3 x4.(on(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_do(e1) & n_construction(x4) & (x2 = x3) & n_roof(x2)) & n_man(x1))
exists s1 x1.(ne_nam_handyman(s1) & a_topic(s1) & on(s1,x1) & n_rooftop(x1))