which source of desaguadero river is also the nation of the unidad académica campesina-carmen pampa ?
SELECT DISTINCT var_uri where brack_open dbr_Desaguadero_River_ attr_open Bolivia attr_close dbp_sourceCountry var_uri sep_dot dbr_Unidad_Académica_Campesina-Carmen_Pampa dbo_country var_uri brack_close