-er b-u bbb bbc bbd bbe bbk bbn bbo bbr bbu bcb bcc bcd bce bck bcn bco bcr bcu bdb bdc bdd bde bdk bdo bdr bdu be- beb bec bed bee bek ben beo ber beu bkb bkc bke bkk bkn bko bkr bnb bnc bnd bne bnk bnn bno bnr bnu bob boc bod boe bok bon boo bor bou brb brd bre brk brn bro brr bru bub buc bud bue buk bun buo bur buu c-- cbb cbc cbd cbe cbk cbn cbo cbr cbu ccb ccc ccd cce cck ccn cco ccr ccu cdb cdc cdd cde cdk cdn cdo cdr cdu ce- ceb cec ced cee cek cen ceo cer ceu ckb ckc ckd cko cn- cnb cnc cnd cne cnn cno cnr cnu co- cob coc cod coe cok con coo cor cou crb crc crd cre crk crn cro crr cru cub cuc cud cue cuk cun cuo cur cuu dbb dbc dbd dbe dbk dbn dbo dbr dbu dcb dcc dcd dce dck dcn dco dcr dcu ddb ddc ddd dde ddk ddn ddo ddr ddu de- deb dec ded dee dek den deo der deu dkb dkc dke dkk dko dkr dku dnb dnc dnd dne dnk dnn dno dnr dob doc dod doe dok don doo dor dou drb drc drd dre drk drn dro drr dru dub duc dud due duk dun duo dur ebb ebc ebd ebe ebk ebn ebo ebr ebu ec- ecb ecc ecd ece eck ecn eco ecr ecu ed- edb edc edd ede edk edn edo edr edu eeb eec eed eee eek een eeo eer ekb ekc ekd eke eko ekr eku en- enb enc end ene enk enn eno enr enu eo- eob eoc eod eoe eok eon eoo eor eou erb erc erd ere erk ern ero err eru eu- eub euc eud eue eun eur kbb kbc kbd kbe kbk kbn kbo kbr kbu kcb kcc kcd kce kck kcn kcr kcu kdb kdc kde kdk kdo kdr kdu ke- keb kec ked kee kek ken keo ker kkb kkc kke kkk kkn kkr kku kn- knc knd kne knk knn kno knr knu kob koc kod koe kok kon koo kor kou krc krd krk krn kro krr kru kub kuc kud kue kuk kun kur kuu nbb nbc nbd nbe nbk nbn nbo nbr nbu ncb ncc ncd nce nck ncn nco ncr ncu ndb ndc ndd nde ndk ndn ndo ndr ndu ne- neb nec ned nee nek nen neo ner neu nkc nke nkk nkn nko nkr nku nnb nnc nne nnk nnn nno nnu no- nob noc nod noe nok non noo nor nou nrb nrc nrd nre nrk nrn nro nrr nru nub nuc nud nue nuk nun nuo nur nuu ob- obb obc obd obe obk obn obo obr obu oc- ocb occ ocd ock ocn oco ocr ocu odb odc odd ode odn odo odr odu oeb oec oed oee oen oeo oer okb okc okd oke okk oko okr oku on- onb onc ond one onk onn ono onr onu oo- oob ooc ood ook oon ooo oor or- orb orc ord ore ork orn oro orr oru ou- ouc oud oue ouk oun ouo our rbb rbc rbd rbe rbk rbn rbo rbr rbu rcb rcc rcd rce rcn rco rcr rcu rdb rdc rdd rde rdn rdo rdr rdu re- reb rec red ree rek ren reo rer reu rkb rkc rke rkk rko rku rnb rnc rnd rnn rno rnr rnu rob roc rod roe rok ron roo ror rou rrb rrc rrd rrk rrn rrr rru rub ruc rud rue ruk run ruo rur ruu ubb ubc ube ubk ubn ubo ubr ubu ucb ucc ucd uce uck ucn uco ucr ucu udb udc udd ude udk udn udo udr udu ueb uec ued uee uen uer ukb ukc uke ukk ukn ukr uku un- unb unc und une unk unn uno unr unu uob uoc uod uoe uok uon uoo uor ur- urb urc urd ure urk urn uro urr uru uuc uue uun uur uuu

-ene -one bbbb bbdd bbdo bbeb bbrc bcbc bccc bcde bcec bcer bcnu bcor bcru bcuc bd-r bdbc bddc bebb bebe bebo beck becu bede bedo bedu beeb beed beek been beer beke beko bend bene benk benn beno benu beo- beod beok beon beor berc berd bere berk bern bero berr beru beuk beur bner bnoc bnor bnrr bobb bobe bobo bobu boce bock boco bocu bodb bode bodo bodu boec boee boen boeo boer boke bokn boko boku bonc bond bone bonk bonn bono bonu boob booc bood booe book boon boor bor- bord bore bork born boro borr boru boud boue bouk boun bour brcb brce brdo breb brec bred bree brek bren breo brer brkb brno brob broc brod broe brok bron broo bror brou brrr bruc brud brue brun bubb bube bubo bubu bucc buce buck buco bucu budb budd bude budo budu buen buer bueu buke bukk buko buku bunb bund bune bunk bunn buno bunu buon bur- burb burd bure burk burn buro burr buru c-bo c-cd cbbc cbcc cbce cbcn cbcr cbcu cbdb cbdc cbdn cbdo cbec cbee cber cbkn cbko cbkr cbnd cbrd cbre cbrn ccbc ccbn cccb cccc cccu ccdc ccdn ccdr cced ccee ccnb ccnc ccne ccnr ccnu ccob ccoc ccod ccrc ccre ccuc cd-e cd-r cddb cddr cdec cder cdnb cdnc cdon cdre cebu cec- cece ceco cedd cede cedo cedu ceeb ceec ceke cen- cend cene ceno ceor ceou cer- cerc cerd cere cern cero ckbc ckbe ckck ckco ckdo ckdu cken cker cknb cknc ckob ckoc ckoo ckor ckrc ckrd cnbc cnco cndd cnrc cnrr cobb cobe cobo cobu coce cock coco cocu codd code coed coen cok- coke coko con- conc cond cone conk conn cono coob cood cook coon cor- corb corc cord core cork corn coro corr coub coud coue couk