A woman in a blue shirt in a crowd.
There is a person in the crowd.
A woman is a person, and it is her in the crowd.
exists s1 x1 x2 x3.(a_topic(x1) & in(x1,x3) & n_crowd(x3) & in(x1,x2) & n_shirt(x2) & a_blue(s1) & Theme(s1,x2) & n_woman(x1))
exists p1 x1 x3.(n_crowd(x3) & exists x2.((x1 = x2) & in(x2,x3) & n_person(x2)))