-ol bbb bbi bbk bbl bbo bbr bbt bi- bib bii bik bil bio bir bit bkb bkk bkl bko bkr bkt blb bli blk bll blo blr blt bob boi bok bol boo bor bot brb bri brk brl bro brr brt btb bti btk btl bto btr btt ibb ibi ibk ibl ibo ibr ibt iib iii iil iio iir iit ikb iki ikk ikl iko ikr ikt il- ilb ili ilk ill ilo ilr ilt io- iob ioi iol ioo ior iot ir- irb iri irk irl iro irr irt itb iti itk itl ito itt k-t kbb kbi kbk kbl kbo kbr kib kii kik kil kio kir kit kkb kki kkk kkl kkr kkt kl- klb kli klo klr klt kob koi kok kol koo kor kot kri krk krl kro krr krt ktb ktk ktl kto ktr ktt lbb lbi lbk lbl lbo lbr lbt lib lii lik lil lio lir lit lkb lkl lkr lkt llb lli llk lll llo llr llt lob loi lok lol loo lor lot lrb lri lrk lro lrr lrt ltb lti ltk ltl lto ltr ltt o-i ob- obb obi obk obl obo obr obt oib oii oik oil oio oir oit okb oki okk okl oko okr olb oli olk oll olo olt oo- oob ooi ook ool ooo oor oot or- orb ori ork orl oro orr ort ot- otb oti otk otl oto otr ott rbb rbi rbk rbl rbo rbr rbt rib rii rik ril rio rir rit rkb rkk rko rkt rli rll rlo rlr rlt rob roi rok rol roo ror rot rrb rri rrk rrl rrr rrt rtb rti rtk rtl rto rtr rtt tbb tbi tbk tbl tbo tbr tbt tib tii tik til tio tir tit tkb tkk tkl tko tkr tkt tli tlk tll tlo tlr tlt to- tob toi tok tol too tor tot trb tri trk trl tro trr trt ttb tti ttk ttl tto ttr ttt

bbbb bblb bibb bibi bibl bibo biko bili bilk bill bilo bilt bio- bioi biol biot birb biri birk birl biro birr birt bito bitt blbt blik blio blir blit blkb blob blok bloo blot bobb bobi bobo boi- boii boil boit boki boko boli bolk boll bolo bolt boob book bool boor boot bor- bori bork boro borr bort botb boti boto bott brik bril brio brit brkb brob brok brol broo bror brot brrr btob btor btrt bttb ibot ibri ibro ibtb ibtl iiii iiio iiit iioi iioo iitr iitt ikki ikko ikoo ikri ilio ilir ilit ilki ill- illi illo illt ilok iloo ilot iobi ioii ioio ioit ioko iolo iooi iooo iori ioto iri- iril irio irki irlb irob irri irti itil itko itll itoi itol itoo itor itri itto k-lo kbbb kbbi kbbk kbbl kbbo kbbr kbbt kbib kbik kbil kbio kbit kbkb kbkk kbkl kbko kbkr kblb kbll kblo kblr kblt kbob kboi kbok kboo kbot kbrb kbri kbrk kbrl kbro kbrt kbtb kbtk kbtl kbto kbtr kbtt kibb kibi kibl kibo kibr kibt kiii kiik kiit kiki kikk kiko kikr kikt kilb kili kilk kill kilo kilr kilt kioi kiok kiol kioo kiot kirb kiri kirk kiro kirr kirt kiti kitl kito kitr kitt kkbb kkbi kkbl kkbo kkbr kkbt kkik kkit kkkk kklb kkli kkll kklo kkob kkol kkoo kkor kkot kkrb kkrk kkrl kkro kkrr kkrt kktk kktl klbb klbl klbt klib klik klil klio klir klit klkk klkl klko klkr kllb kllk klob klok klol kloo klor klrk klrr klti kltk klto kltr kltt kobb kobi kobk kobo kobr koii koil koir koit kokb koki kokk koko kokr kolb koli kolk koll kolo kolr kolt koob kooi kook kool kooo koor koot korb kori kork korl koro korr kort kotb koti kotk koto kotr kott krbb krbi krbk krbl krbr krbt krib krik kril krio krit krki krkk krko krkr krlt krob kroi krok krol kroo kror krrb krri krrk krrl krro krrr krrt krti krtk krto krtr ktbb ktbl ktbr ktbt ktib ktik ktil ktkb ktkk ktko ktkr ktkt ktlb ktli ktlk ktlo ktlr ktlt ktob ktok ktoo ktor ktot ktrb ktri ktrk ktrl ktro ktrr ktrt ktti kttk ktto kttr kttt lblr lbrt libo libr liii liir liko lilb lili lill lilo lilt lio- lior liri lirk lirl liro lirr lirt litb liti litl lito litr litt llll lloo lob- lobb lobi lobo loik loir loit loki lokk loko loli loll lolo loob look lool loor loot lori lork loro loti lotl loto lotr lott lroi lrrr ltbl ltib lttr obbo obit obkb oboi obok obol obor obot obri obro oiii oiko oirt oiti okir okko oklo okok okol okor okot okro okto olbo olib olio olit olki olli ollo olor olot oobi oolo oooo oort ootb orbb orbi orbo ori- oril orio orit orko orlo oro- orok oror orot orri orro orto otit oto- otok otoo otor otro otti otto rbbb rbbr rib- ribo riki rikk rill rilo riol riot riri riti ritl rito ritt rob- robb robi robo robt roik roil roio roir roit roki rokk roko rokr rolk roll rolo rolt roob rooi rook rool roor root rori rork roro rort roti rotk rotl roto rotr rott rrrr rtlt tbil tbit tbrb tibi tiit tiki tiko till tilo tilr tilt tirb tiri tirl tiro tirr titi tito titt tkol tlik tlli tobi tobo tobt toil toit toki toko tol- toli tolk toll tolo tolt took tool toor toot tori tork toro torr tort toti toto totr tott tri- trib trik tril trio trit troi troo trot trtr ttbb tttt

b-r-k bbook bi-lo bibbo bibio bibri bikok bikol bilbi bilbo bili- bilko billi billo bioko birol bitit bitki bitok bitti bitto blikk blirt blitt blook bloor blorb blort bloto blott bo-bo bobbi bobik bobko bobok bobr bobri boilo boiro boito bokit bokko bokok bokor bolko boll- bolli bollo bolok bolti bolto booit booki booko boort borbo borik borio borko boro- borok boroo borot borro