from how many different institutes have the members of commissioner of the republic graduated ?
SELECT DISTINCT COUNT attr_open var_uri attr_close where brack_open var_x dbo_militaryRank dbr_Commissioner_of_the_Republic_ attr_open Provisional_Government attr_close sep_dot var_x dbo_almaMater var_uri sep_dot var_uri a dbo_EducationalInstitution brack_close