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 | Leicester City | 1–2 | Manchester United | 14 February 1976 |
| 2 | Bolton Wanderers | 3–3 | Newcastle United | 14 February 1976 |
| Replay | Newcastle United | 0–0 | Bolton Wanderers | 18 February 1976 |
| Replay | Bolton Wanderers | 1–2 | Newcastle United | 23 February 1976 |
| 3 | Wolverhampton Wanderers | 3–0 | Charlton Athletic | 14 February 1976 |
| 4 | West Bromwich Albion | 1–1 | Southampton | 14 February 1976 |
| Replay | Southampton | 4–0 | West Bromwich Albion | 17 February 1976 |
| 5 | Derby County | 1–0 | Southend United | 14 February 1976 |
| 6 | Norwich City | 1–2 | Bradford City | 23 February 1976 |
| 7 | Chelsea | 2–3 | Crystal Palace | 14 February 1976 |
| 8 | Stoke City | 0–0 | Sunderland | 14 February 1976 |
| Replay | Sunderland | 2–1 | Stoke City | 17 February 1976 |
Question:
how many games were replays?
Answer:
4