The black and brown dogs play in the snowy field.
The dog wags his tail as he plays in the snow.
The dogs playing in the snow could easily be filled with anger in their play. can't assume he wags.
exists e1 s1 s2 s3 x1 x2.(n_field(x2) & a_snowy(s3) & Theme(s3,x2) & n_dog(x1) & a_brown(s2) & Theme(s2,x1) & a_black(s1) & Theme(s1,x1) & in(e1,x2) & Actor(e1,x1) & v_play(e1))
exists e1 p1 x1 x2 x3.(n_snow(x3) & n_male(x1) & n_male(x1) & n_tail(x2) & of(x2,x1) & n_dog(x1) & exists e2.(in(e2,x3) & Actor(e2,x1) & v_play(e2)) & as(e1,p1) & Theme(e1,x2) & Actor(e1,x1) & v_wag(e1))