Mom with child looking at blue fish.
Mom and daughter looking at a blue fish in a book.
A child is not always a daughter. Fish are not always in a book.
exists e1 s1 x1 x2 x3.(at(e1,x3) & n_fish(x3) & a_blue(s1) & Theme(s1,x3) & Actor(e1,x1) & v_look(e1) & with(x1,x2) & n_child(x2) & n_mom(x1))
exists e1 s1 s2 x1 x2 x3 x4 x5.(a_topic(s1) & subset_of(x2,s1) & at(e1,x4) & in(x4,x5) & n_book(x5) & n_fish(x4) & a_blue(s2) & Theme(s2,x4) & Actor(e1,x3) & v_look(e1) & (x2 = x3) & n_daughter(x2) & subset_of(x1,s1) & n_mom(x1))