A chef in a white coat is signing a book
The chef is signing the book he wrote.
Just because a chef is signing a book, does not mean he wrote the book.
exists e1 s1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_sign(e1) & n_book(x3) & in(x1,x2) & n_coat(x2) & a_white(s1) & Theme(s1,x2) & n_chef(x1))
exists e1 p1 x1 x2 x3.(n_book(x3) & n_chef(x2) & n_male(x1) & exists e2.(Theme(e2,x3) & Actor(e2,x2) & v_sign(e2)) & Topic(e1,p1) & Actor(e1,x1) & v_write(e1))