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:
| Week | Date | Opponent | Result | Record | Game Site | Attendance |
| --- | --- | --- | --- | --- | --- | --- |
| 1.0 | September 10, 1989 | San Francisco 49ers | L 24–30 | 0–1 | Hoosier Dome | 60111.0 |
| 2.0 | September 17, 1989 | at Los Angeles Rams | L 17–31 | 0–2 | Anaheim Stadium | 63995.0 |
| 3.0 | September 24, 1989 | Atlanta Falcons | W 13–9 | 1–2 | Hoosier Dome | 57816.0 |
| 4.0 | October 1, 1989 | at New York Jets | W 17–10 | 2–2 | The Meadowlands | 65542.0 |
| 5.0 | October 8, 1989 | Buffalo Bills | W 37–14 | 3–2 | Hoosier Dome | 58890.0 |
| 6.0 | October 15, 1989 | at Denver Broncos | L 3–14 | 3–3 | Mile High Stadium | 74680.0 |
| 7.0 | October 22, 1989 | at Cincinnati Bengals | W 23–12 | 4–3 | Riverfront Stadium | 57642.0 |
| 8.0 | October 29, 1989 | New England Patriots | L 20–23 | 4–4 | Hoosier Dome | 59356.0 |
| 9.0 | November 5, 1989 | at Miami Dolphins | L 13–19 | 4–5 | Joe Robbie Stadium | 52680.0 |
| 10.0 | November 12, 1989 | at Buffalo Bills | L 7–30 | 4–6 | Rich Stadium | 79256.0 |
| 11.0 | November 19, 1989 | New York Jets | W 27–10 | 5–6 | Hoosier Dome | 58236.0 |
| 12.0 | November 26, 1989 | San Diego Chargers | W 10–6 | 6–6 | Hoosier Dome | 58822.0 |
| 13.0 | December 3, 1989 | at New England Patriots | L 16–22 | 6–7 | Sullivan Stadium | 32234.0 |
| 14.0 | December 10, 1989 | Cleveland Browns | W 23–17 | 7–7 | Hoosier Dome | 58550.0 |
| 15.0 | December 17, 1989 | Miami Dolphins | W 42–13 | 8–7 | Hoosier Dome | 55665.0 |
Question:
Who was the opponent in week 4?
Answer:
at New York Jets