Give you a statement and table with its title in Markdown format, please determine whether the statement is supported or refuted by, or is unrelated to the table. It'a binary classification problem, you should choose the answer between supported and refuted. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| episode | season | production code | original air date | directed by |
| i | 2 | 7f04 | october 25 , 1990 | wes archer |
| i | 2 | 7f04 | october 25 , 1990 | rich moore |
| i | 2 | 7f04 | october 25 , 1990 | david silverman |
| ii | 3 | 8f02 | october 31 , 1991 | jim reardon |
| iii | 4 | 9f04 | october 29 , 1992 | carlos baeza |
| iv | 5 | 1f04 | october 28 , 1993 | david silverman |
| v | 6 | 2f03 | october 30 , 1994 | jim reardon |
| vi | 7 | 3f04 | october 29 , 1995 | bob anderson |
| vii | 8 | 4f02 | october 27 , 1996 | mike b anderson |
| viii | 9 | 5f02 | october 26 , 1997 | mark kirkland |
| ix | 10 | aabf01 | october 25 , 1998 | steven dean moore |
| x | 11 | babf01 | october 31 , 1999 | pete michels |
| xi | 12 | babf21 | november 1 , 2000 | matthew nastuk |
| xii | 13 | cabf19 | november 6 , 2001 | jim reardon |
| xiii | 14 | dabf19 | november 3 , 2002 | david silverman |
| xiv | 15 | eabf21 | november 2 , 2003 | steven dean moore |
| xv | 16 | fabf23 | november 7 , 2004 | david silverman |
| xvi | 17 | gabf17 | november 6 , 2005 | david silverman |
| xvii | 18 | habf17 | november 5 , 2006 | david silverman matthew faughnan |
| xviii | 19 | jabf16 | november 4 , 2007 | chuck sheetz |
| xix | 20 | kabf16 | november 2 , 2008 | bob anderson |
| xx | 21 | labf14 | october 18 , 2009 | mike b anderson matthew schofield |
| xxi | 22 | mabf16 | november 7 , 2010 | bob anderson |
| xxii | 23 | nabf19 | october 30 , 2011 | matthew faughnan |
| xxiii | 24 | pabf17 | october 7 , 2012 | steven dean moore |
| xxiv | 25 | rabf16 | october 6 , 2013 | rob oliver |
Title:
list of the simpsons treehouse of horror episodes
Statement:
david silverman only directed one episode
Answer:
refuted