A big brown dog chases a smaller white dog around in the grass.
The big dog is playing with the little dog.
Big dog is a less detailed version of big brown dog, as is little dog and smaller white dog. Also, chases and playing could be considered the same activity.
exists e1 s1 s2 s3 s4 s5 x1 x2 x3.(n_grass(x3) & in(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_chase(e1) & n_dog(x2) & a_around(s5) & Theme(s5,x2) & a_white(s4) & Theme(s4,x2) & r_more(s3) & a_smaller(s3) & Theme(s3,x2) & n_dog(x1) & a_brown(s2) & Theme(s2,x1) & a_big(s1) & Theme(s1,x1))
exists e1 s1 s2 x1.(n_dog(x1) & n_dog(x1) & a_little(s2) & Theme(s2,x1) & a_big(s1) & Theme(s1,x1) & with(e1,x1) & Actor(e1,x1) & v_play(e1))