A young girl wearing sunglasses sits among a crowd.
A girl is sitting by herself reading a book.
A girl can not be sitting by herself while among a crowd.
exists e2 e1 s1 x1 x2 x3 x4.(among(e2,x4) & n_crowd(x4) & Actor(e2,x1) & v_sit(e2) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_sunglass(x3) & (x1 = x2) & n_girl(x1) & a_young(s1) & Theme(s1,x1))
exists e2 e1 x1 x2.(for(e1,e2) & Theme(e2,x2) & Actor(e2,x1) & v_read(e2) & n_book(x2) & by(e1,x1) & n_female(x1) & Actor(e1,x1) & v_sit(e1) & n_girl(x1))