-ol bbb bbi bbk bbl bbo bbs bbt bi- bib bii bik bil bio bis bit biv bkb bkk bkl bko bks bkt bkv blb bli blk bll blo bls blt blv bob boi bok bol boo bos bot bov bsb bsi bsk bsl bso bss bst bsv btb bti btk btl bto bts btt btv bvb bvi bvk bvl bvo bvs bvt bvv i-v ibb ibi ibk ibl ibo ibs ibt ibv iib iii iil iio iis iit ikb iki ikk ikl iko iks ikt ikv il- ilb ili ilk ill ilo ils ilt ilv io- iob ioi iol ioo ios iot iov is- isb isi isk isl iso iss ist isv itb iti itk itl ito its itt itv ivb ivi ivl ivo ivs ivt ivv k-t kbb kbi kbk kbl kbo kbs kib kii kik kil kio kis kit kiv kkb kki kkk kkl kks kkt kkv kl- klb kli klo kls klt klv kob koi kok kol koo kos kot ksb ksi ksk ksl kso kss kst ksv ktb ktk ktl kto kts ktt ktv kvb kvi kvk kvo kvs kvv lbb lbi lbk lbl lbo lbs lbt lbv lib lii lik lil lio lis lit liv lkb lkl lks lkt llb lli llk lll llo lls llt llv lob loi lok lol loo los lot lov lsb lsi lsk lsl lso lss lst lsv ltb lti ltk ltl lto lts ltt ltv lvb lvi lvl lvs lvt lvv o-i ob- obb obi obk obl obo obs obt obv oib oii oik oil oio ois oit oiv okb oki okk okl oko oks olb oli olk oll olo ols olt oo- oob ooi ook ool ooo oos oot oov os- osb osi osk osl oso oss ost osv ot- otb oti otk otl oto ots ott otv ov- ovb ovi ovl ovo ovs ovv sbb sbi sbk sbl sbo sbs sbt sbv sib sii sik sil sio sis sit siv sk- skb ski skk skl sko sks skt slb sli slk sll slo sls slt slv sob soi sok sol soo sos sot sov ss- ssb ssi ssk ssl sso sss sst ssv stb sti stk stl sto sts stt stv svb svi svk svl svo svs svt svv tbb tbi tbk tbl tbo tbs tbt tbv tib tii tik til tio tis tit tiv tkb tkk tkl tko tks tkt tli tlk tll tlo tls tlt tlv to- tob toi tok tol too tos tot tov tsb tsi tsk tsl tso tss tst tsv ttb tti ttk ttl tto tts ttt ttv tvb tvi tvk tvl tvo tvs tvt vbi vbk vbl vbo vbs vbv vi- vib vii vik vil vio vis vit viv vkb vkt vl- vlb vlk vll vlo vls vlt vlv vob voi vok vol voo vos vot vov vsb vsi vsk vsl vso vss vst vsv vtb vti vtk vtl vto vts vtt vtv vvb vvi vvo vvs vvt vvv

bbbb bbbs bblb bbls bibb bibi bibl bibo bibs biis biko bili bilk bill bilo bils bilt bio- bioi biol bios biot bis- bisk bisl biso biss bist bito bits bitt bivi bivl blbt blik blio blis blit blkb blls blob blok bloo blot blss blst blts blvt bobb bobi bobo bobs boi- boii boil bois boit boki boko boks boli bolk boll bolo bols bolt boob book bool boos boot bosi bosk boso boss bost botb boti boto bots bott bovi bovo bskt bsos bsts bstv btob btss bttb btvi ibis ibos ibot ibss ibtb ibtl ibts iiii iiio iiis iiit iioi iioo iios iisi iist iitt ikki ikko ikoo ilio ilis ilit ilki ilks ill- illi illo ills illt ilok iloo ilos ilot ilts iobi ioii ioio ioit ioko iolo iooi iooo ioos ioso ioto isbl isbt isil isis isit isko isls iso- isok isol isos issi isso isss isti isto ists itbs itil itis itko itll itoi itol itoo itos itsi itso itto ivbv k-lo k-os kbbb kbbi kbbk kbbl kbbo kbbs kbbt kbib kbik kbil kbio kbis kbit kbkb kbkk kbkl kbko kbkv kblb kbll kblo kbls kblt kblv kbob kboi kbok kboo kbos kbot kbov kbsb kbsi kbsk kbso kbss kbst kbsv kbtb kbtk kbtl kbto kbts kbtt kbtv kbvb kbvo kibb kibi kibl kibo kibs kibt kiii kiik kiis kiit kiki kikk kiko kikt kilb kili kilk kill kilo kilt kioi kiok kiol kioo kiot kisi kisk kisl kiso kiss kist kisv kiti kitl kito kits kitt kitv kivi kkbb kkbi kkbl kkbo kkbs kkbt kkik kkit kkkk kklb kkli kkll kklo kkls kklv kkob kkol kkoo kkot kkov kksi kkss kkst kktk kktl kkts kktv kkvt kkvv klbb klbl klbs klbt klib klik klil klio klis klit kliv klkk klkl klko klks klkv kllb kllk klls kllv klob klok klol kloo klos klov klsi klst klsv klti kltk klto kltt kltv klvb klvi klvk klvl klvo klvs klvt klvv kobb kobi kobk kobo kobs koii koil koit koiv kokb koki kokk koko koks kolb koli kolk koll kolo kols kolt kolv koob kooi kook kool kooo koos koot koov kos- kosb kosi koso koss kost kotb koti kotk koto kots kott kotv kovi kovk kovo ksbi ksbl ksbs ksbv ksib ksii ksik ksil ksis ksit ksiv kskb kskk ksko ksks kslb ksli kslk ksll kslo kslt kslv ksob ksoi ksok ksol ksoo ksos kssi kssl ksso ksss ksst kstb ksti kstk kstl ksto ksts kstt kstv ksvi ksvl ktbb ktbl ktbt ktib ktik ktil ktis ktiv ktkb ktkk ktko ktks ktkt ktlb ktli ktlk ktlo ktlt ktlv ktob ktok ktoo ktot ktsl ktso ktst ktti kttk ktto ktts kttt kttv ktvb ktvi ktvk ktvl ktvo ktvt kvbl kvbt kvik kvil kvis kvit kviv kvkl kvlb kvli kvlo kvlv kvob kvoi kvok kvol kvoo kvot kvov kvsi kvsl kvso kvss kvst kvsv kvti kvtk kvto kvtt kvtv kvvl kvvs kvvv lbos libo libs liii liis liiv liko lilb lili lill lilo lils lilt lio- lios lisi lisk liso liss list litb liti litl lito lits