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:
| Date | Visitor | Score | Home | Leading scorer | Record |
| --- | --- | --- | --- | --- | --- |
| 2 December 2002 | Cavaliers | 93–125 | Knicks | Dajuan Wagner (25) | 2–17 |
| 4 December 2002 | Bulls | 101–111 | Cavaliers | Dajuan Wagner (29) | 3–17 |
| 7 December 2002 | Cavaliers | 104–112 | Bulls | Zydrunas Ilgauskas (28) | 3–18 |
| 9 December 2002 | Bucks | 140–133 | Cavaliers | Ricky Davis (45) | 3–19 |
| 11 December 2002 | Raptors | 83–96 | Cavaliers | Dajuan Wagner (33) | 4–19 |
| 13 December 2002 | Cavaliers | 100–115 | Celtics | Ricky Davis (42) | 4–20 |
| 14 December 2002 | Nuggets | 104–111 | Cavaliers | Two-way tie (29) | 5–20 |
| 16 December 2002 | SuperSonics | 111–98 | Cavaliers | Ricky Davis (20) | 5–21 |
| 18 December 2002 | Pistons | 111–106 | Cavaliers | Zydrunas Ilgauskas (29) | 5–22 |
| 20 December 2002 | Cavaliers | 107–109 | Pistons | Ricky Davis (42) | 5–23 |
| 21 December 2002 | Celtics | 89–82 | Cavaliers | Dajuan Wagner (25) | 5–24 |
| 23 December 2002 | Heat | 72–74 | Cavaliers | Ricky Davis (33) | 6–24 |
| 27 December 2002 | Pacers | 113–89 | Cavaliers | Zydrunas Ilgauskas (21) | 6–25 |
| 29 December 2002 | Suns | 103–84 | Cavaliers | Ricky Davis (15) | 6–26 |
| 30 December 2002 | Cavaliers | 88–102 | Nets | Ricky Davis (24) | 6–27 |
Question:
When has a Visitor of bulls?
Answer:
4 December 2002