Two guys having fun playing and singing a song.
The men are cousins.
We have no idea if they are cousins, they could be anyone.
exists e2 e1 x1 x2 x3 x4 x5.(Theme(e2,x5) & Actor(e2,x4) & v_sing(e2) & n_song(x5) & n_guy(x4) & card_eq_2(x4) & Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_playing(x2) & of(x2,x3) & n_fun(x3) & n_guy(x1) & card_eq_2(x1))
exists p1 x1.(n_man(x1) & exists x2.((x1 = x2) & n_cousin(x2)))