NPC Codes (old 2002 version)
| CODE | NPC Code | NPC Code | |
| HIERARCHY | Hierarchy | Hierarchy | |
| NAME | Name | Description | |
| DEFINITION | Definition | Definition | |
| USE_REFERENCE | Use reference | Use reference | |
| SEE_ALSO | See also | See also | |
| BROADER | Broader | Broader | |
| NARROWER | Narrower | Narrower | |
| RandNum | Random number between 0 and 1 | Random number between 0 and 1 used for creating samples |