Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Call sign | Frequency MHz | City of license | ERP W | Class | FCC info |
| --- | --- | --- | --- | --- | --- |
| W284BC | 104.7 | Waldorf, Maryland | 10.0 | D | FCC |
| W253AZ | 98.5 | Creedmoor, North Carolina | 40.0 | D | FCC |
| W279BW | 103.7 | Roxboro, North Carolina | 10.0 | D | FCC |
| W273BD | 102.5 | Winston-Salem, North Carolina | 4.0 | D | FCC |
| W210BY | 89.9 | Aquia Harbour, Virginia | 5.0 | D | FCC |
| W274AV | 102.7 | Ashland, Virginia | 14.0 | D | FCC |
| W211CB | 90.1 | Berryville, Virginia | 3.0 | D | FCC |
| W245BG | 96.9 | Cave Spring, Virginia | 10.0 | D | FCC |
| W217BR | 91.3 | Chantilly, Virginia | 10.0 | D | FCC |
| W244BP | 96.7 | Charlottesville, Virginia | 10.0 | D | FCC |
| W278BF | 103.5 | Covington, Virginia | 10.0 | D | FCC |
| W237CA | 95.3 | Culpeper, Virginia | 19.0 | D | FCC |
| W282BH | 104.3 | Danville, Virginia | 155.0 | D | FCC |
| W267BA | 101.3 | Harrisonburg, Virginia | 10.0 | D | FCC |
| W286BN | 105.1 | Marion, Virginia | 10.0 | D | FCC |
| W295BF | 106.9 | Midlothian, Virginia | 10.0 | D | FCC |
| W293AS | 106.5 | Pulaski, Virginia | 10.0 | D | FCC |
| W235AI | 94.9 | Richmond, Virginia | 16.0 | D | FCC |
| W293AX | 106.5 | Roanoke, Virginia | 10.0 | D | FCC |
| W279AN | 103.7 | South Boston, Virginia | 10.0 | D | FCC |
| W298AZ | 107.5 | South Hill, Virginia | 19.0 | D | FCC |
| W218CK | 91.5 | Warrenton, Virginia | 10.0 | D | FCC |
| W262BK | 100.3 | Waynesboro, Virginia | 7.0 | D | FCC |
| W270BO | 101.9 | Wytheville, Virginia | 10.0 | D | FCC |
Question:
Which city has frequency under 106.5MHz and a callsign of w218ck?
Answer:
Warrenton, Virginia