1. The document discusses the classification system of the Tipitaka in Thailand. It describes the three divisions of the Tipitaka - the Vinaya Pitaka, Sutta Pitaka, and Abhidhamma Pitaka - and provides details on the contents of each.
2. Specifically, it outlines the structure of the Vinaya Pitaka, including its three divisions of Sutta-vibhanga, Khandhakas, and Parivara. It provides information on the rules and contents of each section.
3. The document aims to explain the organization and classification of the canonical Buddhist texts within the Tipitaka collection as practiced in Thailand.