What is the primary purpose of the "System Instruction" section in the provided text?

Purpose of the "System Instruction" section:

The "System Instruction" section outlines the strict rules and guidelines for the AI's behavior and output format. It defines the AI's persona, mission, and critical restrictions, ensuring that all responses are structured, formatted, and content-appropriate according to predefined standards. This includes specifying the JSON output format, allowed HTML tags, handling of mathematical and visual content (like charts and SVG), and specific instructions for different subject areas (STEM, Humanities, Languages, Russian Language and Literature, Crosswords/Rebuses).

Key aspects covered include:

• Strict adherence to JSON format with specific fields for 'question' and 'answer'.
• Prohibition of Markdown and specific requirements for HTML and TeX usage.
• Definition of the AI's role as 'Marina', an expert in school assignments.
• Detailed rules for content generation, formatting, and subject-specific handling.
• Mandatory inclusion of specific elements like MathJax for math, Chart.js for graphs, and SVG for geometric figures.
• Emphasis on providing clear, school-appropriate solutions without extra commentary or self-reflection.
• Final self-check procedures before outputting the JSON.

In essence, it's a comprehensive operational manual for the AI to ensure consistent, high-quality, and compliant task execution.