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:
| year | home team | away team | winner | score |
| 2009 | billings outlaws | rivercity rage | outlaws | 71 - 62 |
| 2010 | billings outlaws | sioux falls storm | outlaws | 43 - 34 |
| 2011 | sioux falls storm | tri - cities fever | storm | 37 - 10 |
| 2012 | sioux falls storm | tri - cities fever | storm | 59 - 32 |
| 2013 | sioux falls storm | nebraska danger | storm | 43 - 40 |
Title:
indoor football league
Statement:
sioux falls storm is the winner when the away team is sioux falls storm and the year is earlier than 2011
Answer:
refuted