what currencies have been prevalent in the country whose national anthem is ko e fasi ʻo e tuʻi ʻo e ʻotu tonga ?
SELECT DISTINCT var_uri where brack_open var_x dbo_anthem dbr_Ko_e_fasi_ʻo_e_tuʻi_ʻo_e_ʻOtu_Tonga sep_dot var_x dbo_currency var_uri brack_close