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bbbb bbbq bblb bibb bibi bibl bibo bili bill bilo bilt bilu bio- bioi biol biot biou biqi birb biri birl biro birr birt biru bito bitt bitu blbt blio blir blit blob bloo blot blou blub blur blut bobb bobi bobo bobu boi- boii boil boit boiu boli boll bolo bolt bolu boob bool boor boot bor- bori boro borr bort boru botb boti boto bott boul bour bout bril brio briq brit brob brol broo bror brot brou brrr brut btob btor btrt bttb bubb bubi bubo bubq bubu buir buit buiu bulb buli bull bult bulu buol bur- burb buri burl buro burr burt buru but- buti buto butt ibot ibri ibro ibtb ibtl iiii iiio iiit iioi iioo iitr iitt ilio ilir ilit ill- illi illo illt iloo ilot ilut iobi ioii ioio ioit iolo iooi iooo iori ioto iqor iri- iril irio irlb irob irql irri irti irul itil itll itoi itol itoo itor itou itri itto itur iuiu lblr lbrt libo libr libu liii liir lilb lili lill lilo lilt lilu lio- lior liri lirl liro lirr lirt liru litb liti litl lito litr litt litu liut llll lloo lob- lobb lobi lobo loir loit loiu loli loll lolo loob lool loor loot lori loro loti lotl loto lotr lott loui loul lour lout louu lroi lrrr ltbl ltib lttr luit luli lull lulu luri lurt luti luuq obbo obit oblu oboi obol oboq obor obot obri obro oiii oirt oiti olbo olib olio olit olli ollo olor olot oltu olur oobi oolo oooo oort ootb oqui orbb orbi orbo orbu ori- oril orio orit orlo orlu oro- oror orot orri orro orto orub otit oto- otoo otor otro otti otto ottu otur ouii ouir ouit oulu our- ouro ourt out- outb outi outo outq ouu- qbit qibo qiru qlol qloo qobu qoob qool qqqq qrio qubi qubo quib quil quir quit quli quob quoi quor quot quri quro qutb quu- rbbb rbbr rib- ribo ribu rill rilo rilu riol riot riou riqq riri riti ritl rito ritt ritu rob- robb robi robo robt robu roil roio roir roit roiu roll rolo rolt roob rooi rool roor root rori roro rort roru roti rotl roto rotr rott roub roul rout rrrr rtlt rubb rubi rubu ruit rull rulo ruri ruro ruru ruti rutl ruto rutt rutu tbil tbit tbrb tibi tibu tiit tiiu till tilo tilr tilt tiou tirb tiri tirl tiro tirr tiru titi tito titt titu tlli tobi tobo tobt tobu toil toit tol- toli toll tolo tolt tolu tool toor toot tori toro torq torr tort toru toti toto totr tott toui toul tour tout tri- trib tril trio trit troi troo trot trou trtr trub trut truu ttbb tttt ttul tubb tubo tubr tubu tuil tuit tuiu tuli tull tulo tulu tuor turb turi turo turr turt turu tuti tutl tuto tutt tutu tuuo ubbi ubbo ubii ubir ubit ubli ublo uirr ulli ullo ullr ulo- ulti ulto ultt ulul uor- urbi urib uriu uro- urol uroo urri uruq urur urut util utor utri utti utto uttu utuq uulu uuri uuuu

bi-lo bibbo bibio bibri bilbi bilbo bili- billi billo billu bilut bioul birol birou birur bitit bitru bitti bitto blirt blitt bloor blorb blort bloto blott blout blurb blurr blurt bluto bo-bo bobbi bobr bobri boilo boiro boito boll- bolli bollo bollu bolti bolto booit boort booru borbo borio boro- boroo borot borou borro borul borut botou botro botti bottu boul- bouli boulo boult bouri bouto brill briot briou brito britt brobo broil broll brolo brool broto brout brrrr bruit bruiu brull bruri btr-t built bulb- bulbi buliu bull- bulli bulou