I loko o nā makahiki he 20 i hala iho nei ua ulu ʻo yitao i mea hoʻolālā alakaʻi honua a me ka mea hana o ka puna wai a me nā huahana hoʻokuʻu ea.Ua hoʻomaka ʻo yitao i kahi hale hana liʻiliʻi liʻiliʻi, ua wehe i ke ala e lilo ai i inoa hanohano ma o ka laha ʻana ma nā ʻāina ʻo 6 i kēia lā.I loko o kēia mau makahiki he 20, ua kālele wale mākou i kā mākou hana a mākou i ʻike ai i ka hana ʻana o ka puna wai a me nā lawelawe.