---
type: "rule"
title: "R-UNRES-2"
description: "'?' and '…' are epistemic annotations, NOT clusters."
resource: "tlctc:rule:R-UNRES-2"
tags:
  - "taxonomy"
  - "rule"
  - "must"
enforcement_level: "must"
machine_enforceable: false
---
# R-UNRES-2

'?' and '…' are epistemic annotations, NOT clusters. They have no generic vulnerability, do not appear in cluster definitions, and must not be referenced as if they were '#11'/'#12'.

# Schema

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