ʻI he taimi ʻoku fakalele totonu ai, ʻOku ʻikai malava ke fakatupu ʻe he kasa ʻo e famili lolotonga.
ʻOku faʻa ngaue ʻaki ʻa e cylinders kasa ʻe ha kau palofesinale mo palangi ke toki fakaʻaongaʻi pe hili hono feau e ngaahi tuʻunga malu fakafonua, ko ia ʻoku nau malu ai. Neongo ia, ʻOku fakafeʻiloaki mai ʻe he ʻi ai ʻa e ngaahi koloa angamaheni ʻi he maketi ha ngaahi fakatuʻutamaki pau.
Fakapapauʻi ʻoku mahuʻinga hono fakatau ʻo e kasa kuo fakamoʻoniʻi cylinders mei he ngaahi faiʻanga fakamafola fakalao ki he malu.