Two young boys playing indoor soccer, simultaneously chasing after the soccer ball.
Two young boys throwing a football outside.
The two both are either indoor playing soccer or outside playing football. It can't be both at the same time.
exists e1 e2 s1 s2 s3 s4 x1 x2 x3 x4.(a_simultaneously(s4) & Manner(e2,s4) & after(e2,x4) & n_ball(x4) & of(x4,x2) & n_soccer(x2) & n_soccer(x2) & Actor(e2,x3) & v_chase(e2) & n_boy(x3) & a_young(s3) & Theme(s3,x3) & card_eq_2(x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & a_indoor(s2) & Theme(s2,x2) & n_boy(x1) & a_young(s1) & Theme(s1,x1) & card_eq_2(x1))
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_throw(e1) & n_outside(x3) & of(x3,x4) & n_football(x4) & (x1 = x2) & n_boy(x1) & a_young(s1) & Theme(s1,x1) & card_eq_2(x1))