-aaa- aabaa aabba aabra abaab ababa abala aball abalo abara abbar aboab abobl abobo abora abrar abrol alaba alala alaol alara albal albar albo- albor allal allar allbo allo- alloa alloo allor allra aloba aloor alora ar-ab arab- araba arabo arara arbab arbar arbol arbor arlob aroab aroar aroba arola aroll aroor arora babar babol baboo babra balal balao balar balbo balla ballo baloo balor baoro baraa barab baral barao barar barba barla baro- baroa baroo baror barra barro bball bloor blorb bo-bo boaro bobal bobar bobla bobr bolar boll- bolla bollo booba boola boora boral borba borbo borla boro- boroa boroo borra borro braal brall brobo broll brolo brool brora brrar brrrr la-la labab labba labra labro lalab lalar lalla lalo- lalor laroo larra lball loaba loara lobal lobar lobbo lobo- lobor lolla lollo lolol loola loora loral lorra o-r-b oaror obaba obala obara obolo obora oboro obrab olala ooola ooooo oraal oraba oralb orara orbal orobo ra-ra raaba raaor rabab rabal rabba rabor ralla rallo ro-ro roall robab robar robbo robo- robor rolao rolla rollo rooba roral rorra