EROSIVE
| Date | Clue |
|---|---|
| 2015-04-28 | Like waves vis-à-vis the shoreline |
| 2010-12-10 | Like swift streams |
| 2010-09-09 | Wearing |
| 2008-08-04 | Like waves on a shore |
| 2007-10-18 | Like waves on a shoreline |
| 2006-12-30 | Like the wind |
| 2002-10-18 | Wearing |
| 2002-08-24 | Like running water |
| 2001-03-02 | Like wind and water |
| 1999-06-30 | Like rushing water |
| 1997-01-30 | Wearing |