who is the musical artist worked for labels dial records and dial records ?
SELECT DISTINCT var_uri where brack_open var_uri dbp_label dbr_Dial_Records_ attr_open 1999 attr_close sep_dot var_uri dbp_label dbr_Dial_Records_ attr_open 1999 attr_close sep_dot var_uri a dbo_MusicalArtist brack_close