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:
| call sign | frequency mhz | city of license | facility id | erp w | height m ( ft ) | class | fcc info |
| kzth | 88.5 | piedmont , oklahoma | 83880 | 50000 | - | c1 | fcc |
| kthf | 89.9 | hammon , oklahoma | 177198 | 26500 | - | c2 | fcc |
| kxth | 89.1 | seminole , oklahoma | 85076 | 2600 | - | a | fcc |
| kthl | 89.3 | altus , oklahoma | 85076 | 1500 | - | a | fcc |
| k276ex | 103.1 | oklahoma city , oklahoma | 145396 | 75 | - | d | fcc |
| k261dp | 100.1 | edmond , oklahoma | 83195 | 92 | - | d | fcc |
| k253ay | 98.5 | norman , oklahoma | 148125 | 25 | - | d | fcc |
| k261dr | 100.1 | wichita , kansas | 14455 | 250 | - | d | fcc |
| k289au | 105.7 | bartlesville , oklahoma | 153233 | 250 | - | d | fcc |
| k290bp | 105.9 | stillwater , oklahoma | 51938 | 250 | - | d | fcc |
Title:
kjth
Statement:
only three of the call signs have a as their listed class
Answer:
refuted