How should a Singapore passport holder fill out their name on a Thai visa application?

A Singapore passport holder is seeking guidance on how to correctly enter their name on a Thai visa application, as their passport includes a full English name and a Hanyu Pinyin without clearly defined family and given names. Users in the comments suggest referring to the Machine Readable Zone (MRZ) of the passport for accurate data entry, although no explicit confirmation of what to input is provided, leading to a lack of a definitive answer.