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 | 1–0 | Frickley Athletic | 8 December 1984 |
| 2 | Dartford | 1–1 | Bournemouth | 8 December 1984 |
| Replay | Bournemouth | 4–1 | Dartford | 11 December 1984 |
| 3 | Bristol City | 1–3 | Bristol Rovers | 8 December 1984 |
| 4 | Burnley | 3–1 | Halifax Town | 8 December 1984 |
| 5 | Preston North End | 1–4 | Telford United | 8 December 1984 |
| 6 | Reading | 6–2 | Bognor Regis Town | 8 December 1984 |
| 7 | Walsall | 1–0 | Chesterfield | 8 December 1984 |
| 8 | Tranmere Rovers | 0–3 | Hull City | 8 December 1984 |
| 9 | Brentford | 2–2 | Northampton Town | 8 December 1984 |
| Replay | Northampton Town | 0–2 | Brentford | 17 December 1984 |
| 10 | Plymouth Argyle | 0–0 | Hereford United | 8 December 1984 |
| Replay | Hereford United | 2–0 | Plymouth Argyle | 12 December 1984 |
| 11 | Bradford City | 2–1 | Mansfield Town | 8 December 1984 |
| 12 | Millwall | 1–0 | Enfield | 8 December 1984 |
| 13 | Altrincham | 1–3 | Doncaster Rovers | 8 December 1984 |
| 14 | Port Vale | 4–1 | Scunthorpe United | 7 December 1984 |
| 15 | Aldershot | 0–2 | Burton Albion | 8 December 1984 |
| 16 | Wigan Athletic | 2–1 | Northwich Victoria | 8 December 1984 |
| 17 | Colchester United | 0–5 | Gillingham | 8 December 1984 |
| 18 | Dagenham | 1–0 | Peterborough United | 8 December 1984 |
| 19 | Orient | 3–0 | Torquay United | 8 December 1984 |
| 20 | Hartlepool United | 0–2 | York City | 8 December 1984 |
Question:
In Tie #18, who was the away team?
Answer:
Peterborough United