-ol b-u bbb bbc bbd bbl bbn bbo bbr bbu bcb bcc bcd bcl bcn bco bcr bcu bdb bdc bdd bdl bdo bdr bdu blb blc bld bll bln blo blr blu bnb bnc bnd bnl bnn bno bnr bnu bob boc bod bol bon boo bor bou brb brd brl brn bro brr bru bub buc bud bul bun buo bur buu c-- cbb cbc cbd cbl cbn cbo cbr cbu ccb ccc ccd ccl ccn cco ccr ccu cdb cdc cdd cdl cdn cdo cdr cdu cl- clb clc cld cll cln clo clr clu cn- cnb cnc cnd cnl cnn cno cnr cnu co- cob coc cod col con coo cor cou crb crc crd crl crn cro crr cru cub cuc cud cul cun cuo cur cuu dbb dbc dbd dbl dbn dbo dbr dbu dcb dcc dcd dcl dcn dco dcr dcu ddb ddc ddd ddl ddn ddo ddr ddu dl- dlb dlc dld dll dlo dlr dlu dnb dnc dnd dnl dnn dno dnr dob doc dod dol don doo dor dou drb drc drd drl drn dro drr dru dub duc dud dul dun duo dur lbb lbc lbd lbl lbo lbr lbu lcb lcc lcd lcl lcn lco lcr lcu ldb ldc ldd ldl ldn ldo ldr ldu llb llc lld lll lln llo llr llu lnb lnc lnd lnl lnn lno lnr lnu lob loc lod lol lon loo lor lou lrb lrc lrd lrn lro lrr lru lub luc lud lul lun luo lur luu nbb nbc nbd nbl nbn nbo nbr nbu ncb ncc ncd ncl ncn nco ncr ncu ndb ndc ndd ndl ndn ndo ndr ndu nlb nlc nld nll nln nlo nlr nlu nnb nnc nnl nnn nno nnu no- nob noc nod nol non noo nor nou nrb nrc nrd nrl nrn nro nrr nru nub nuc nud nul nun nuo nur nuu ob- obb obc obd obl obn obo obr obu oc- ocb occ ocd ocl ocn oco ocr ocu odb odc odd odl odn odo odr odu olb olc old oll oln olo olu on- onb onc ond onl onn ono onr onu oo- oob ooc ood ool oon ooo oor or- orb orc ord orl orn oro orr oru ou- ouc oud oul oun ouo our rbb rbc rbd rbl rbn rbo rbr rbu rcb rcc rcd rcl rcn rco rcr rcu rdb rdc rdd rdl rdn rdo rdr rdu rlc rld rll rln rlo rlr rlu rnb rnc rnd rnn rno rnr rnu rob roc rod rol ron roo ror rou rrb rrc rrd rrl rrn rrr rru rub ruc rud run ruo rur ruu ubb ubc ubl ubn ubo ubr ubu ucb ucc ucd ucl ucn uco ucr ucu udb udc udd udl udn udo udr udu ulb ulc uld ull uln ulo ulr ulu un- unb unc und unl unn uno unr unu uob uoc uod uol uon uoo uor ur- urb urc urd url urn uro urr uru uuc uun uur uuu

bbbb bbdd bbdo bblb bbrc bcbc bccc bccl bcnu bcor bcru bcuc bd-r bdbc bddc blcu bldc bldr blno blob bloc blod blon bloo blou blrc blub blud blur bnoc bnor bnrr bobb bobo bobu boco bocu bodb bodo bodu bold boll boln bolo bolu bonc bond bonn bono bonu boob booc bood bool boon boor bor- bord born boro borr boru boud boul boun bour brcb brdo brno brob broc brod brol bron broo bror brou brrr bruc brud brun bubb bubo bubu bucc buco bucu budb budd budl budo budu bulb buld bull bulu bunb bund bunn buno bunu buol buon bur- burb burd burl burn buro burr buru c-bo c-cd cbbc cbcc cbcl cbcn cbcr cbcu cbdb cbdc cbdn cbdo cblb cblc cbln cbnd cbol cbrd cbrl cbrn ccbc ccbn cccb cccc cccl cccu ccdc ccdn ccdr cclc ccnb ccnc ccnr ccnu ccob ccoc ccod ccrc ccrl ccuc cd-r cddb cddl cddr cdnb cdnc cdon clcd cldc cldr clob clod clon cloo clor clou clrd clro club clud clun cnbc cnbl cnco cndd cnrc cnrr cobb cobo cobu coco cocu codd codl col- colb cold coll coln colo colu con- conc cond conn cono coob cood cool coon cor- corb corc cord corl corn coro corr coub coud coul coun cour crbc crbu crcc crcr crdc crob croc crod crol cron croo cror crub crud crun cub- cubb cucc cucn culb culc culd cull culo cund cuno cuon curb curd curl curn curo curr d-bo dbcc dbnl dbrn dcbc dccb dccc dccl dccu dcdb dcon dddd ddlc ddoc ddrc ddub dlbd dlco dnoc dnrc dobb dobl dobu doco docu dod- dodd dodo dold doll dolo dolu donc dond donn dono donr doob dood dool doon door dorc dord dorn doro dorr doru doub douc doud doul doun dour drbc drno drob drod drol dron drou drub druu dub- dubb dubc dubu duco dudd dudo dudu dulc dull dulo dulu dunc dunn duno duo- duon durn duro duru duul duur lbcc lblr lcbc lccc lcdd lcdr lcor lcrd lcrl llcc lldb lldc lllc llll lloc llod lloo llud lncr lndn lob- lobb lobo locc locn loco locu lold loll lolo lond lono lonr loob looc lood lool loon loor lord lorn loro loud loul loun lour louu lrdd lroc lron lrrc lrrr ludd ludo lull lulu lund lunn luno lurd nbbc nbbo nbcc nbco ncbc nccc nccn nccr nccu ncdc ncdn ncdr ncdu nclc ncln nclr ncnc ncnd ncoc ncor ncrc ndcc nddb nddo ndoc ndor ndrc nlcc nlrb nndb nnnn nobc nobo nobu nocl noco nodo nodu nold noll nolo non- nonn nono nonu noo- noob nool noon nooo noor nor- norb norc nord norn noro norr noul noun nour nrdc nrlb nroc nron nrrc nrrd nrrl nubc nubl nucu nudc nudd nudo null nunc nunn nuno nuoc nuon nurc nurd nurl nurn nurr nuru obbo oblu obol obon obor obro ocbc occc occn oclc ocon ocrl ocro ocrr ocul ocur odbo