Man works on top of scaffolding.
Man is happy to work on top of scaffolding.
The man is not necessarily happy.
exists e1 x1 x2 x3.(on(e1,x2) & of(x2,x3) & n_scaffolding(x3) & n_top(x2) & Actor(e1,x1) & v_work(e1) & n_man(x1))
exists p1 s1 x1.(Topic(s1,p1) & Actor(s1,x1) & a_happy(s1) & exists e1 x2 x3.(on(e1,x2) & of(x2,x3) & n_scaffolding(x3) & n_top(x2) & Actor(e1,x1) & v_work(e1)) & n_man(x1))