[Xy-pic] new arrow types

[Maxim Leenson]

    Hello everybody, 

I'd like to have an xy-pic arrow looking like \subset.

   (
    My expirience:
    I've tried
              \ar@{*{\subset}}
    i.e.
      \xymatrix
      {
          A \ar@{*{\subset}}[r] & B \\
      }
    it does not look right; and I think that XY-Pic is
        right, becasue, according to 
    the Users's guide, I've described the head and not
the shaft.
       I've also tried
          \ar@{{}*{\subset}{}}
     meaning an empty tail, shaft like \subset and an
empty head;
     it also did not work, this time I do not know
why. 
   )

  What is the right answer? Thank you, Maxim Leenson.


__________________________________________________
Do You Yahoo!?
Try FREE Yahoo! Mail - the world's greatest free email!
http://mail.yahoo.com/