Two women are walking on the street.
Two men are throwing the baseball while smiling.
Throwing and walking are two different things.
exists e1 x1 x2.(n_street(x2) & on(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_woman(x1) & card_eq_2(x1))
exists e1 e2 x1 x2.(n_baseball(x2) & while(e1,e2) & Actor(e2,x1) & v_smile(e2) & Theme(e1,x2) & Actor(e1,x1) & v_throw(e1) & n_man(x1) & card_eq_2(x1))