Branching Conversation Validator

Review this branching dialogue structure for logical consistency and player experience.

**Dialogue Context:**
NPC: {{npc_name}}
Conversation Goal: {{conversation_goal}}
Player Knowledge State: {{player_knowledge}}

**Dialogue Structure:**
{{dialogue_structure}}

**Validate for:**

1. **Logic Holes**
   - Can players reach contradictory states?
   - Are there orphaned nodes?
   - Do all paths reach valid endings?

2. **Player Experience**
   - Are any options "trap" choices?
   - Is there meaningful variety in outcomes?
   - Can players miss critical information?

3. **Character Consistency**
   - Does NPC maintain consistent knowledge?
   - Are reactions proportional to player tone?
   - Does personality stay intact across branches?

4. **Implementation Feasibility**
   - Flag overly complex conditions
   - Identify combinatorial explosion risks
   - Suggest simplifications where possible

Provide annotated version with corrections.