---
type: "rule"
title: "R-UNRES-3"
description: "'?'/'…' are excluded from statistics — they represent absence of knowledge, not a category."
resource: "tlctc:rule:R-UNRES-3"
tags:
  - "taxonomy"
  - "rule"
  - "must"
enforcement_level: "must"
machine_enforceable: false
---
# R-UNRES-3

'?'/'…' are excluded from statistics — they represent absence of knowledge, not a category.

# Schema

- **Enforcement level:** must
- **Machine enforceable:** false