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:
| Tie no | Home team | Score | Away team | Date |
| --- | --- | --- | --- | --- |
| 1 | Darlington | 0–0 | Chester | 22 November 1975 |
| Replay | Chester | 2–0 | Darlington | 26 November 1975 |
| 2 | Dartford | 1–4 | Bishop's Stortford | 22 November 1975 |
| 3 | Hartlepool | 3–0 | Stockport County | 22 November 1975 |
| 4 | Bury | 4–2 | Doncaster Rovers | 22 November 1975 |
| 5 | Grantham | 2–2 | Port Vale | 22 November 1975 |
| Replay | Port Vale | 4–1 | Grantham | 24 November 1975 |
| 6 | Preston North End | 2–1 | Scunthorpe United | 22 November 1975 |
| 7 | Sutton United | 1–1 | Bournemouth | 22 November 1975 |
| Replay | Bournemouth | 1–0 | Sutton United | 26 November 1975 |
| 8 | Watford | 0–3 | Brighton & Hove Albion | 22 November 1975 |
| 9 | Weymouth | 0–2 | Gillingham | 22 November 1975 |
| 10 | Yeovil Town | 1–1 | Millwall | 22 November 1975 |
| Replay | Millwall | 2–2 | Yeovil Town | 25 November 1975 |
| Replay | Yeovil Town | 0–1 | Millwall | 3 December 1975 |
| 11 | Marine | 3–1 | Barnsley | 22 November 1975 |
| 12 | Walsall | 0–1 | Huddersfield Town | 22 November 1975 |
| 13 | Sheffield Wednesday | 3–1 | Macclesfield Town | 22 November 1975 |
| 14 | Grimsby Town | 1–3 | Gateshead United | 22 November 1975 |
| 15 | Scarborough | 2–0 | Morecambe | 22 November 1975 |
| 16 | Wycombe Wanderers | 0–0 | Bedford Town | 22 November 1975 |
| Replay | Bedford Town | 2–2 | Wycombe Wanderers | 24 November 1975 |
| Replay | Wycombe Wanderers | 2–1 | Bedford Town | 1 December 1975 |
| 17 | Brentford | 2–0 | Northampton Town | 22 November 1975 |
| 18 | Rossendale United | 0–1 | Shrewsbury Town | 22 November 1975 |
| 19 | Bradford City | 1–0 | Chesterfield | 22 November 1975 |
| 20 | Crystal Palace | 1–0 | Walton & Hersham | 22 November 1975 |
| 21 | Spennymoor United | 4–1 | Southport | 22 November 1975 |
| 22 | Southend United | 2–0 | Swansea City | 22 November 1975 |
| 23 | Mansfield Town | 1–1 | Wrexham | 22 November 1975 |
| Replay | Wrexham | 1–1 | Mansfield Town | 24 November 1975 |
| Replay | Mansfield Town | 2–1 | Wrexham | 8 December 1975 |
| 24 | Cardiff City | 6–2 | Exeter City | 22 November 1975 |
| 25 | Halifax Town | 3–1 | Altrincham | 22 November 1975 |
| 26 | Newport County | 2–2 | Swindon Town | 22 November 1975 |
| Replay | Swindon Town | 3–0 | Newport County | 25 November 1975 |
| 27 | Workington | 1–1 | Rochdale | 22 November 1975 |
| Replay | Rochdale | 2–1 | Workington | 25 November 1975 |
| 28 | Hereford United | 2–0 | Torquay United | 22 November 1975 |
| 29 | Rotherham United | 2–1 | Crewe Alexandra | 22 November 1975 |
| 30 | Aldershot | 4–3 | Wealdstone | 22 November 1975 |
| 31 | Romford | 0–1 | Tooting & Mitcham United | 22 November 1975 |
| 32 | Wigan Athletic | 4–1 | Matlock Town | 22 November 1975 |
| 33 | Boston United | 0–1 | Lincoln City | 22 November 1975 |
| 34 | Peterborough United | 4–1 | Winsford United | 22 November 1975 |
| 35 | Colchester United | 3–3 | Dover | 22 November 1975 |
| Replay | Dover | 4–1 | Colchester United | 26 November 1975 |
| 36 | Nuneaton Borough | 0–1 | Wimbledon | 22 November 1975 |
| 37 | Hendon | 1–0 | Reading | 22 November 1975 |
| 38 | Leatherhead | 2–0 | Cambridge United | 22 November 1975 |
| 39 | AP Leamington | 2–3 | Stafford Rangers | 22 November 1975 |
| 40 | Coventry Sporting | 2–0 | Tranmere Rovers | 22 November 1975 |
Question:
Who was the away team with a tie number of 4?
Answer:
Doncaster Rovers