bbbbbb bhildi bhimli bibiri bibiru bidbid bilbul biribi blimbi blublu bribir bribri brimir brubru bruill bububu buddhi budrum bulbil bulbul buldir buldur bullid bullir burbur burdur bururi ddr-ii dhimmi dhubri dhulli diii-d dimdim dirdum diuril drilid drummr dubbil dubdub duiliu duldul dulmir dululu dumdum dumuli durdum hibhib hibrid hildur hilili hillir hillul hirmil hiurud hubbub hubdub hubrid hububb huh-uh hullur huluhu humbul humhub humhum humiri hummum humuli hurumu i-buld ibilib ibrium idrimi ildrim imbrid imbull imirim imlili irbidi irridu librul liburd lidumi liliid lilium lilliu liluri limbdi limbur limmud limuli limuru llubi lubdub lubiri lubuli ludlum lumbri lumuli lurulu miburi middil midlum midrib milium milli- mirihi mirili miruru mm-hmm mrbill muddir muhuhu muhurr muhuru mulhid mullid mullum mullur mulmul mulmur murdur murium murmir murmur muumuu riddim ridill rimuli rirumu rubrum rudrur ruhubi rumbud rumbur rumdum udburu udullu uh-huh um-hum umbrid umbril umirim umudim umudlu umurlu