A young boy in a red "U.S.A." t-shirt plays with a toy circuit board kit.
A boy plays with a ball in a green shirt.
The boy that plays with a ball can't play with a circuit board at the same time.
exists s1 s2 s3 x1 x2 x3 x4 x5 x6 x7.(a_topic(x1) & Time(x1,x7) & n_kit(x7) & with(x1,x4) & n_board(x4) & of(x4,x6) & n_circuit(x6) & of(x4,x5) & n_toy(x5) & n_t-shirt(x1) & Time(x1,x3) & n_play(x3) & in(x1,x2) & n_u.s.a.(x2) & a_''(s3) & Theme(s3,x2) & a_red(s2) & Theme(s2,x2) & n_boy(x1) & a_young(s1) & Theme(s1,x1))
exists e1 s1 x1 x2 x3.(with(e1,x2) & in(x2,x3) & n_shirt(x3) & a_green(s1) & Theme(s1,x3) & n_ball(x2) & Actor(e1,x1) & v_play(e1) & n_boy(x1))