-ol b-u bbb bbd bbi bbk bbl bbo bbs bbu bdb bdd bdi bdk bdl bdo bds bdu bi- bib bid bii bik bil bio bis biu bkb bkk bkl bko bks blb bld bli blk bll blo bls blu bob bod boi bok bol boo bos bou bsb bsd bsi bsk bsl bso bss bsu bub bud bui buk bul buo bus buu dbb dbd dbi dbk dbl dbo dbs dbu ddb ddd ddi ddk ddl ddo dds ddu di- dib did dii dik dil dio dis diu dkb dki dkk dkl dko dks dku dl- dlb dld dli dlk dll dlo dls dlu dob dod doi dok dol doo dos dou dsb dsd dsi dsk dsl dso dss dsu dub dud dui duk dul duo dus i-d ibb ibd ibi ibk ibl ibo ibs ibu idb idd idi idk idl ido ids idu iib iid iii iil iio iis iiu ikb iki ikk ikl iko iks iku il- ilb ild ili ilk ill ilo ils ilu io- iob iod ioi iol ioo ios iou is- isb isd isi isk isl iso iss isu iu- iub iud iui ius kbb kbd kbi kbk kbl kbo kbs kbu kdb kdk kdl kdo kds kdu kib kid kii kik kil kio kis kiu kkb kki kkk kkl kks kku kl- klb kld kli klo kls klu kob kod koi kok kol koo kos kou ksb ksd ksi ksk ksl kso kss ksu kub kud kui kuk kul kus kuu lbb lbd lbi lbk lbl lbo lbs lbu ldb ldd ldi ldk ldl ldo lds ldu lib lid lii lik lil lio lis liu lkb lkl lks llb lld lli llk lll llo lls llu lob lod loi lok lol loo los lou lsb lsd lsi lsk lsl lso lss lsu lub lud lui luk lul luo lus luu o-i ob- obb obd obi obk obl obo obs obu odb odd odi odl odo ods odu oib oid oii oik oil oio ois oiu okb okd oki okk okl oko oks oku olb old oli olk oll olo ols olu oo- oob ood ooi ook ool ooo oos os- osb osd osi osk osl oso oss osu ou- oud oui ouk oul ouo ous sbb sbd sbi sbk sbl sbo sbs sbu sdb sdd sdi sdk sdl sdo sds sdu sib sid sii sik sil sio sis siu sk- skb skd ski skk skl sko sks sku slb sld sli slk sll slo sls slu sob sod soi sok sol soo sos sou ss- ssb ssd ssi ssk ssl sso sss ssu sub sud sui suk sul suo sus suu ubb ubi ubk ubl ubo ubs ubu udb udd udi udk udl udo uds udu uib uid uii uil uio uis uiu ukb uki ukk ukl uku ulb uld uli ulk ull ulo uls ulu uob uod uok uol uoo uos usb usd usi usk usl uso uss usu uus uuu