git-annex in mizuguchi@ubuntu:~/0804/test2

test/b.txt

@@ -0,0 +1 @@
+../.git/annex/objects/pZ/vK/MD5E-s3--a543b9622f7bf1a340a8a6682d09ad17.txt/MD5E-s3--a543b9622f7bf1a340a8a6682d09ad17.txt