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:
| date of opinion poll | conductor | sample size | for | against | undecided |
| 27 september 2009 | sunday independent / quantum research | 1000 | 68% | 17% | 15% |
| 26 september 2009 | red c / sunday business post | 1000 | 55% | 27% | 18% |
| 25 september 2009 | tns / mrbi / irish times | 1000 | 48% | 33% | 19% |
| 18 september 2009 | millward brown / lansdowne | 1000 | 53% | 26% | 21% |
| 12 september 2009 | quantum research / sunday independent | 1000 | 63% | 15% | 22% |
| 12 september 2009 | red c / post | 1000 | 52% | 25% | 23% |
| 4 september 2009 | tns / mrbi | 1000 | 46% | 29% | 25% |
| 28 may 2009 | tns / mrbi | 2000 | 54% | 28% | 18% |
| 13 may 2009 | tns / mrbi | 2000 | 52% | 29% | 19% |
| 25 april 2009 | quantum research | 500 | 54% | 24% | 22% |
| 28 january 2009 | red c / post | 1001 | 58% | 28% | 14% |
| 23 january 2009 | lansdowne | 1000 | 58% | 29% | 12% |
Title:
none
Statement:
tns / mrbi conducted a poll with sample size 2000 and the result was more than 20% undecided
Answer:
refuted