A group of men are doing a synchronized dance.
The guys are dancers.
Doing a synchronized dance does not mean that the men are dancers.
exists e1 s1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_do(e1) & n_dance(x3) & a_synchronized(s1) & Theme(s1,x3) & of(x1,x2) & n_man(x2) & n_group(x1))
exists p1 x1.(n_guy(x1) & exists x2.((x1 = x2) & n_dancer(x2)))