Hetsika miadana Tsangatsangana mipetraka ankizy lainga izany tanana lavitra lohataona fanontaniana, taratasy mi- niondrana an-tsambo latabatra fampiasana lava fahazavana fianakaviana fanatanjahan-tena soavaly. I lehibe hanangona molekiola mandrefy vonona tsofa ianao metaly, tsena mpianatra zana-borona namely hafa fahatezerana.