Buildings not made principally or wholly of metal; relocatable buildings not made principally or wholly of metal; framework for buildings not made principally or wholly of metal (including relocatable buildings); advertisement columns (not of metal); advertising boards (non-metallic hoardings); non-metallic modular units for constructing relocatable buildings; modular portable buildings (non-metallic); modular portable building structures (non-metallic); modular portable building units (non-metallic); modular portable building units of non-metallic materials for construction into relocatable buildings; modular prefabricated building units of non-metallic materials for construction into relocatable buildings; non-metallic prefabricated building elements for on site assembly; non-metallic prefabricated building elements for sale in kit form; relocatable kiosks (non-metallic structures)