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:
| Area | Name | Zone | Group(s) | Parties | Max People | Camp Type |
| --- | --- | --- | --- | --- | --- | --- |
| AA9 | Badger | Primitive | 1.0 | 1.0 | 17.0 | A/L |
| AU9 | Blacktail Canyon | Wild | 1.0 | 2.0 | 12.0 | A/L |
| BN9 | Boucher | Primitive | 1.0 | 2.0 | 23.0 | A/L |
| LB9 | Boysag | Wild | 1.0 | 2.0 | 12.0 | A/L |
| LK9 | Burnt Point | Wild | 1.0 | 2.0 | 12.0 | A/L |
| SA9 | Cape Final | Threshold | 0.0 | 1.0 | 6.0 | D/S |
| SA9 | Cape Solitude | Primitive | 1.0 | 2.0 | 23.0 | A/L |
| BC9 | Cardenas | Primitive | 1.0 | 2.0 | 23.0 | A/L |
| SB9 | Cedar Mountain | Threshold | 2.0 | 2.0 | 34.0 | A/L |
| AJ9 | Cheyava | Wild | 1.0 | 2.0 | 12.0 | A/L |
| AF9 | Chuar | Primitive | 1.0 | 3.0 | 29.0 | A/L |
| AK9 | Clear Creek | Threshold | 1.0 | 3.0 | 29.0 | A/L |
| CBG | Corridor-Bright Angel | Corridor | 2.0 | 31.0 | 90.0 | D/G |
| CCG | Corridor-Cottonwood (Summer) | Corridor | 1.0 | 6.0 | 40.0 | D/G |
| CCG | Corridor-Cottonwood (Winter) | Corridor | 1.0 | 1.0 | 8.0 | D/G |
| CIG | Corridor-Indian Garden | Corridor | 1.0 | 15.0 | 50.0 | D/G |
| BG9 | Cottonwood Creek | Primitive | 1.0 | 2.0 | 23.0 | A/L |
| BJ9 | Cremation | Primitive | 1.0 | 2.0 | 23.0 | A/L |
| AX9 | Deer Creek | Primitive | 1.0 | 1.0 | 17.0 | D/S |
| LG9 | Diamond Creek | Wild | 1.0 | 2.0 | 12.0 | A/L |
| SF9 * | Eminence Break | Primitive | 1.0 | 1.0 | 17.0 | A/L |
| AY9 | Esplanade | Primitive | 1.0 | 2.0 | 23.0 | A/L |
| AZ9 | Fishtail | Wild | 1.0 | 2.0 | 12.0 | A/L |
| BS9 | Fossil | Wild | 1.0 | 1.0 | 1.0 | A/L |
| BR9 | Garnet | Primitive | 1.0 | 2.0 | 23.0 | A/L |
| LM9 | Grand Wash Cliffs | Primitive | 1.0 | 2.0 | 12.0 | A/L |
| BH9 | Grapevine | Primitive | 1.0 | 2.0 | 23.0 | A/L |
| AL9 | Greenland Springs | Wild | 1.0 | 2.0 | 12.0 | A/L |
| BE9 | Hance Creek | Primitive | 1.0 | 2.0 | 23.0 | A/L |
| BM7 | Hermit Loop-Hermit Creek | Threshold | 1.0 | 3.0 | 29.0 | D/S |
| BM8 | Hermit Loop-Hermit Rapids | Threshold | 1.0 | 1.0 | 17.0 | D/S |
| BL4 | Hermit Loop-Horn Creek | Threshold | 0.0 | 1.0 | 6.0 | D/S |
| BL5 | Hermit Loop-Salt Creek | Threshold | 0.0 | 1.0 | 6.0 | D/S |
| BL6 | Hermit Loop-Cedar Creek | Threshold | 0.0 | 1.0 | 6.0 | D/S |
| BL7 | Hermit Loop-Monument | Threshold | 1.0 | 3.0 | 29.0 | D/S |
| BL8 | Hermit Loop-Granite Rpaids | Threshold | 1.0 | 2.0 | 23.0 | D/S |
| BL9 | Horseshoe Mesa | Threshold | 2.0 | 3.0 | 40.0 | D/S |
| SI9 * | Jackass | Primitive | 1.0 | 1.0 | 17.0 | A/L |
| LA9 | Kanab Creek | Primitive | 1.0 | 2.0 | 23.0 | A/L |
| NK9 | Kanab Point | Primitive | 1.0 | 3.0 | 29.0 | A/L |
| NC9 | Ken Patrick | Primitive | 1.0 | 2.0 | 12.0 | A/L |
| NN9 | Lava | Threshold | 1.0 | 1.0 | 17.0 | A/L |
| AE9 | Nankwoeap | Primitive | 1.0 | 2.0 | 23.0 | A/L |
| BU9 | National | Wild | 1.0 | 2.0 | 12.0 | A/L |
| AS9 | North Bass | Primitive | 1.0 | 1.0 | 17.0 | A/L |
| BT9 | Olo | Wild | 1.0 | 2.0 | 12.0 | A/L |
| NG9 | Outlet | Primitive | 1.0 | 2.0 | 23.0 | A/L |
| BA9 * | Palisades | Primitive | 1.0 | 2.0 | 23.0 | A/L |
| LE9 | Parashant | Wild | 1.0 | 2.0 | 12.0 | A/L |
| SE9 | Pasture Wash | Threshold | 2.0 | 3.0 | 40.0 | A/L |
| AP9 | Phantom Creek | Wild | 1.0 | 2.0 | 12.0 | A/L |
| NH9 | Point Sublime | Threshold | 2.0 | 3.0 | 34.0 | D/S |
| AT9 | Powell Plateau | Primitive | 1.0 | 2.0 | 23.0 | A/L |
| BD9 | Red Canyon | Primitive | 1.0 | 2.0 | 23.0 | A/L |
| AB9 | Rider | Primitive | 1.0 | 1.0 | 17.0 | A/L |
| ND9 | Robbers Roost | Primitive | 1.0 | 3.0 | 29.0 | A/L |
| BP9 | Ruby | Primitive | 1.0 | 2.0 | 23.0 | A/L |
| AD9 | Saddle Canyon | Primitive | 1.0 | 1.0 | 17.0 | A/L |
| SH9 * | Saltwater Wash | Primitive | 1.0 | 1.0 | 17.0 | A/L |
| AR9 | Scorpion Ridge | Wild | 1.0 | 2.0 | 12.0 | A/L |
| LH9 | Separation | Wild | 1.0 | 2.0 | 12.0 | A/L |
| SG9 * | Shinumo Wash | Primitive | 1.0 | 1.0 | 17.0 | A/L |
| BO9 | Slate | Primitive | 1.0 | 2.0 | 23.0 | A/L |
| LL9 | Snap Point | Primitive | 1.0 | 2.0 | 12.0 | A/L |
| BQ9 | South Bass | Primitive | 1.0 | 2.0 | 12.0 | A/L |
| AC9 | South Canyon | Primitive | 1.0 | 1.0 | 17.0 | A/L |
| LJ9 | Surprise | Wild | 1.0 | 2.0 | 12.0 | A/L |
| AM9 | Surprise Valley | Primitive | 1.0 | 1.0 | 17.0 | A/L |
| NJ9 | Swamp Ridge | Primitive | 1.0 | 3.0 | 29.0 | A/L |
| BB9 | Tanner | Primitive | 1.0 | 3.0 | 29.0 | A/L |
| AW7 | Tapeats-Upper Tapeats | Threshold | 1.0 | 2.0 | 23.0 | D/S |
| AW8 | Tapeats-Lower Tapeats | Threshold | 1.0 | 1.0 | 17.0 | D/S |
| AV9 | Tapeats Amphitheatre | Wild | 1.0 | 2.0 | 12.0 | A/L |
| LC9 | The Dome | Primitive | 1.0 | 2.0 | 12.0 | A/L |
| NB9 | Thompson Canyon | Primitive | 1.0 | 3.0 | 29.0 | A/L |
| NM9 | Toroweap Valley | Threshold | 1.0 | 2.0 | 23.0 | A/L |
| LF9 | Trail Canyon | Wild | 1.0 | 2.0 | 12.0 | A/L |
| AQ9 | Trinity Creek | Wild | 1.0 | 2.0 | 12.0 | A/L |
| NL9 | Tuckup Point | Primitive | 1.0 | 3.0 | 29.0 | A/L |
| AG9 | Unkar | Wild | 1.0 | 2.0 | 12.0 | A/L |
| AH9 | Vishnu | Wild | 1.0 | 1.0 | 11.0 | A/L |
| NA0 | Walhalla Plateau | Primitive | 1.0 | 3.0 | 29.0 | A/L |
| LI9 | Whitmore | Threshold | 1.0 | 1.0 | 17.0 | A/L |
| NF9 | Widforss | Threshold | 1.0 | 2.0 | 23.0 | A/L |
Question:
Which zone has max capacity of 23 in a group under 2 at Robbers Roost?
Answer:
Primitive