Brown and white dog with brown and black dog on gray sheet.
Two dogs on a gray sheet.
There are two dogs because one dog is with another dog.
exists s1 s2 s3 s4 s5 x1 x2 x3 x4.(ne_per_brown(x1) & a_topic(s1) & subset_of(x2,s1) & with(x2,x3) & on(x3,x4) & n_sheet(x4) & a_gray(s5) & Theme(s5,x4) & n_dog(x3) & a_black(s4) & Theme(s4,x3) & a_brown(s3) & Theme(s3,x3) & n_dog(x2) & a_white(s2) & Theme(s2,x2) & subset_of(x1,s1))
exists s1 x1 x2.(a_topic(x1) & on(x1,x2) & n_sheet(x2) & a_gray(s1) & Theme(s1,x2) & n_dog(x1) & card_eq_2(x1))