Three people are sitting on a couch and one is playing with some balls.
Three people sitting on a couch, one of them playing with multiple spherical objects.
Some is another way to say multiple and spherical objects is balls.
exists e2 e1 x1 x2 x3 x4.(with(e2,x4) & n_ball(x4) & Actor(e2,x3) & v_play(e2) & n_thing(x3) & card_eq_1(x3) & on(e1,x2) & n_couch(x2) & Actor(e1,x1) & v_sit(e1) & n_people(x1) & card_eq_3(x1))
exists e2 e1 s1 s2 x1 x2 x3 x4.(with(e2,x4) & n_object(x4) & a_spherical(s2) & Theme(s2,x4) & a_multiple(s1) & Theme(s1,x4) & Actor(e2,x3) & v_play(e2) & of(x3,x1) & n_thing(x1) & n_thing(x3) & card_eq_1(x3) & on(e1,x2) & n_couch(x2) & Actor(e1,x1) & v_sit(e1) & n_people(x1) & card_eq_3(x1))