Brightly dressed men doing acrobatics on a log.
a man saws lumber
These are not the same men. The men doing acrobats are brightly dressed and there is more than one. There is only one man sawing lumber.
exists e1 e2 x1 x2 x3 x4.(a_topic(x1) & on(e2,x4) & n_log(x4) & Theme(e2,x3) & Actor(e2,x2) & v_do(e2) & n_acrobatics(x3) & (x1 = x2) & n_man(x1) & Theme(e1,x1) & v_dress(e1) & r_brightly(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_saw(e1) & n_lumber(x2) & n_man(x1))