1.1.33 पूर्वपरावरदक्षिणोत्तरपराधराणि व्यवस्थायामसंज्ञायाम्

पूर्व पर अवर दक्षिण उत्तर​ अपर अधर​ - attached words would have सर्वनाम​ status as well.
Note:

पूर्व etc. words are classified into three subcategories 1. geographical 2. temporal 3. directional (spatial)