what is the base currency of the central bank of são tomé and príncipe and is also used as money in são tomé and príncipe ?
SELECT DISTINCT var_uri where brack_open dbr_Central_Bank_of_São_Tomé_and_Príncipe dbp_currency var_uri sep_dot dbr_São_Tomé_and_Príncipe dbo_currency var_uri brack_close