[O]

[..]
  1. OBJECT_ID
  2. OBJ_TYPE_DUMMY
  3. OB_init
  4. OP_ADD
  5. OP_AND
  6. OP_APPEND
  7. OP_COMPARE
  8. OP_DEL
  9. OP_EQUAL
  10. OP_MS
  11. OP_NOOP
  12. OP_NOT
  13. OP_OR
  14. OP_UPD
  15. OUTPUT_FD
  16. OVR_OK
[..]