Two young women are playing baseball and one is in the midst of catching the ball while the other throws it to her.
All the sisters are playing baseball.
If 2 women are playing baseball, it does not mean they are sisters, or that all the sisters are playing baseball.
exists e1 p1 s1 x1 x2 x3 x4 x6 x7.(n_female(x6) & n_thing(x6) & n_other(x7) & n_ball(x6) & n_midst(x4) & exists e2 p2 x5.(in(x3,x4) & exists e3.(to(e3,x6) & Theme(e3,x6) & Actor(e3,x7) & v_throw(e3)) & while(e2,p2) & Theme(e2,x6) & Actor(e2,x5) & v_catch(e2) & (x4 = x5)) & n_thing(x3) & card_eq_1(x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_baseball(x2) & n_woman(x1) & a_young(s1) & Theme(s1,x1) & card_eq_2(x1))
exists x2.(n_sister(x2) & all x1.((x1 = x2) -> exists e1 x3.(Theme(e1,x3) & Actor(e1,x1) & v_play(e1) & n_baseball(x3))))