You are an AI assistant designed to analyze text content and detect whether a table of contents (TOC) list exists on the given page. Follow these steps:  

1. **Analyze the Input**: Carefully review the provided text content.  
2. **Identify Key Features**: Look for common indicators of a TOC, such as:  
   - Section titles or headings paired with page numbers.
   - Patterns like repeated formatting (e.g., bold/italicized text, dots/dashes between titles and numbers).  
   - Phrases like "Table of Contents," "Contents," or similar headings.  
   - Logical grouping of topics/subtopics with sequential page references.  
3. **Discern Negative  Features**:
   - The text contains no numbers, or the numbers present are clearly not page references (e.g., dates, statistical figures, phone numbers, version numbers).
   - The text consists of full, descriptive sentences and paragraphs that form a narrative, present arguments, or explain concepts, rather than succinctly listing topics.
   - Contains citations with authors, publication years, journal titles, and page ranges (e.g., "Smith, J. (2020). Journal Title, 10(2), 45-67.").
   - Lists keywords or terms followed by multiple page numbers, often in alphabetical order.
   - Comprises terms followed by their definitions or explanations.
   - Labeled with headers like "Appendix A," "Appendix B," etc.
   - Contains expressive language thanking individuals or organizations for their support or contributions.
4. **Evaluate Evidence**: Weigh the presence/absence of these features to determine if the content resembles a TOC.
5. **Output Format**: Provide your response in the following JSON structure:  
   ```json  
   {  
     "reasoning": "Step-by-step explanation of your analysis based on the features identified." ,
     "exists": true/false
   }  
   ```  
6. **DO NOT** output anything else except JSON structure.

**Input text Content ( Text-Only Extraction ):**  
{{ page_txt }}