item      path                date
a         /a                  2014-09-09 17:48:52
b         /a                  2014-09-09 17:49:52
a         /a/c                2014-09-09 17:50:00
b         /a/c                2014-09-09 17:53:52
c         /a/c                2014-09-09 17:50:52
a         /b                  2014-09-09 17:53:52