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 | Sheffield United | 0–1 | Manchester United | 11 Mar 1990 |
| 2 | Queens Park Rangers | 2–2 | Liverpool | 11 Mar 1990 |
| Replay | Liverpool | 1–0 | Queens Park Rangers | 14 Mar 1990 |
| 3 | Oldham Athletic | 3–0 | Aston Villa | 14 Mar 1990 |
| 4 | Cambridge United | 0–1 | Crystal Palace | 10 Mar 1990 |
Question:
What is the Tie No with a Score of 2–2?
Answer:
2.0