A man and a brown dog in motion in the grass.
A guy frolics with his dog in the snow.
The subjects are either in the snow or the grass.
exists s1 s2 x1 x2 x3 x4.(n_grass(x4) & a_topic(s1) & subset_of(x2,s1) & in(x2,x3) & in(x3,x4) & n_motion(x3) & n_dog(x2) & a_brown(s2) & Theme(s2,x2) & subset_of(x1,s1) & n_man(x1))
exists x1 x2 x3 x4.(n_snow(x4) & a_topic(x1) & with(x1,x3) & in(x3,x4) & n_dog(x3) & of(x3,x1) & n_male(x1) & Time(x1,x2) & n_frolic(x2) & n_guy(x1))