b-u bbb bbd bbi bbr bbu bdb bdd bdi bdr bdu bi- bib bid bii bir biu brb brd bri brr bru bub bud bui bur buu dbb dbd dbi dbr dbu ddb ddd ddi ddr ddu di- dib did dii dir diu drb drd dri drr dru dub dud dui dur i-d ibb ibd ibi ibr ibu idb idd idi idr idu iib iid iii iir iiu ir- irb ird iri irr iru iu- iub iud iui iur rbb rbd rbi rbr rbu rdb rdd rdi rdr rdu rib rid rii rir rrb rrd rri rrr rru rub rud rui rur ruu ubb ubi ubr ubu udb udd udi udr udu uib uid uii uir uiu ur- urb urd uri urr uru uur uuu

bbbb bbdd bd-r bdii bibb bibi bidi bidr bidu birb bird biri birr biru brid brrr brud bubb bubi bubu budb budd budi budu buid buir buiu bur- burb burd buri burr buru dddd ddub dibb didi didu diii dird dirr drib drub drui druu dub- dubb dubu dudd dudu duid duir duri duru duur ibid ibrd ibri idid idir idub iiii iri- irid irri iuiu rbbb rbbr rib- ribu ridd ridi riri rrrr rubb rubi rubu rudd rudi ruid rurd ruri ruru ruud ubbi ubid ubii ubir ubud uddi udid udir uirr urbi urdu urib uriu urri urur uuri uuuu

bibri biddu bidri bidur birdu birur bridi brrrr brud- bruiu bruri buddu budur buird burdi burri burru burud ddddd dibri diddu dridu druid druri dubbi dubi i-bid ibbur iiiii irbid irid- ribbi rubbi rubid ruiru u-dub ubirr urubu ururi uuuuu

bbbbbb bibiri bibiru bidbid biribi bribir bribri brubru bububu burbur burdur bururi ddr-ii diii-d dubdub irbidi irridu rudrur udburu

bbbbbbb uriburu

bbbbbbbb buruburu i-ii-iii

bidi-bidi ddddddddd dub-i-dub

ubbi-dubbi

biddi-biddi

bbbbbbbbbbbbbbb