Two men, without any shirts on, are playing table tennis
Two men are playing a sport while laughing.
The simple fact that the men are playing table tennis does not necessarily imply they are laughing.
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_tennis(x2) & of(x2,x3) & n_table(x3) & -all x4.(n_shirt(x4) -> exists s1 x5.(with(x1,x4) & Theme(s1,x5) & a_on(s1) & (x4 = x5))) & n_man(x1) & card_eq_2(x1))
exists e1 e2 x1 x2.(while(e1,e2) & Actor(e2,x1) & v_laugh(e2) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_sport(x2) & n_man(x1) & card_eq_2(x1))