A small blond boy plays with a rubber paint-spattered mallet.
The boy is playing.
If someone plays you can say they are playing
exists e1 s1 s2 s3 x1 x2 x3.(with(e1,x2) & n_mallet(x2) & a_paint-spattered(s3) & Theme(s3,x2) & of(x2,x3) & n_rubber(x3) & Actor(e1,x1) & v_play(e1) & n_boy(x1) & a_blond(s2) & Theme(s2,x1) & a_small(s1) & Theme(s1,x1))
exists e1 x1.(n_boy(x1) & Actor(e1,x1) & v_play(e1))