A man and a little girl in a pink dress
father and daughter
A man and a little girl could be uncle and niece for all we know, it's impossible to infer the fact they're father and daughter simply from seeing them together.
exists s1 s2 s3 x1 x2 x3.(a_topic(s1) & subset_of(x2,s1) & in(x2,x3) & n_dress(x3) & a_pink(s3) & Theme(s3,x3) & n_girl(x2) & a_little(s2) & Theme(s2,x2) & subset_of(x1,s1) & n_man(x1))
exists s1 x1 x2.(n_daughter(x2) & n_father(x1) & subset_of(x2,s1) & subset_of(x1,s1) & a_topic(s1))