a boy in a purple shirt is playing with a toy ans another young boy in a blue shirt is watching him.
A boy is watching another boy play with a toy
if there is a boy playing with a toy and another boy is watching him then there is a boy and another boy watching him play with a toy.
exists e1 e3 e2 s1 s2 s3 s4 x1 x2 x3 x4 x5 x6 x7.(Theme(e3,x2) & Actor(e3,x1) & v_watch(e3) & n_male(x2) & in(x1,x2) & with(e1,x4) & Theme(e2,x6) & Actor(e2,x5) & v_an(e2) & in(x6,x7) & n_shirt(x7) & a_blue(s4) & Theme(s4,x7) & n_boy(x6) & a_young(s3) & Theme(s3,x6) & -(x6 = x1) & n_boy(x1) & n_boy(x1) & a_young(s2) & Theme(s2,x1) & (x4 = x5) & n_toy(x4) & Actor(e1,x3) & v_play(e1) & (x2 = x3) & n_shirt(x2) & a_purple(s1) & Theme(s1,x2))
exists e1 x1 x2 x3 x4 x5.(Theme(e1,x3) & Actor(e1,x1) & v_watch(e1) & with(x3,x5) & n_toy(x5) & n_play(x3) & of(x3,x4) & n_boy(x4) & -(x3 = x2) & n_play(x2) & of(x2,x1) & n_boy(x1) & n_boy(x1))