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:
| Game | Date | Team | Score | High points | High rebounds | High assists | Location Attendance | Series |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1.0 | May 9 | @ New York | L 95–111 | Alonzo Mourning (27) | Alonzo Mourning (13) | Muggsy Bogues (8) | Madison Square Garden Unknown | 0–1 |
| 2.0 | May 12 | @ New York | L 101–105 (OT) | Alonzo Mourning (24) | Sidney Green (10) | Muggsy Bogues (7) | Madison Square Garden Unknown | 0–2 |
| 3.0 | May 14 | New York | W 110–106 (2OT) | Alonzo Mourning (34) | Alonzo Mourning (10) | Muggsy Bogues (8) | Charlotte Coliseum Unknown | 1–2 |
| 4.0 | May 16 | New York | L 92–94 | Larry Johnson (24) | Alonzo Mourning (8) | Muggsy Bogues (5) | Charlotte Coliseum Unknown | 1–3 |
| 5.0 | May 18 | @ New York | L 101–105 | Kendall Gill (26) | Alonzo Mourning (12) | Kendall Gill (6) | Madison Square Garden Unknown | 1–4 |
Question:
What is High Rebounds, when Location Attendance is "Madison Square Garden Unknown", and when Date is "May 18"?
Answer:
Alonzo Mourning (12)