-er -ic bbb bbc bbe bbi bbk bbo bbr bcb bcc bce bci bck bco bcr bcv be- beb bec bee bei bek beo ber bev bi- bib bic bie bii bik bio bir biv bkb bkc bke bkk bko bkr bkv bob boc boe boi bok boo bor bov brb bre bri brk bro brr brv bvb bvc bve bvi bvk bvo bvr bvv c-- cbb cbc cbe cbi cbk cbo cbr cbv ccb ccc cce cci cck cco ccr ccv ce- ceb cec cee cei cek ceo cer cev ci- cib cic cie cii cik cio cir civ ckb ckc cki cko co- cob coc coe coi cok coo cor cov crb crc cre cri crk cro crr crv cvb cvc cve cvi cvk cvo cvr cvv ebb ebc ebe ebi ebk ebo ebr ebv ec- ecb ecc ece eci eck eco ecr ecv eeb eec eee eek eeo eer eev eib eic eie eii eik eio eir eiv ekb ekc eke eki eko ekr ekv eo- eob eoc eoe eoi eok eoo eor erb erc ere eri erk ero err erv evb evc eve evi evo evr evv i-v ibb ibc ibe ibi ibk ibo ibr ibv icb icc ice ici ick ico icr icv ie- iec iee iei iek ier iev iib iic iie iii iio iir ikb ikc ike iki ikk iko ikr ikv io- iob ioc ioe ioi ioo ior iov ir- irb irc ire iri irk iro irr irv ivb ivc ive ivi ivo ivr ivv kbb kbc kbe kbi kbk kbo kbr kcb kcc kce kci kck kcr ke- keb kec kee kei kek keo ker kev kib kic kie kii kik kio kir kiv kkb kkc kke kki kkk kkr kkv kob koc koe koi kok koo kor krc kri krk kro krr krv kvb kvi kvk kvo kvr kvv o-i ob- obb obc obe obi obk obo obr obv oc- ocb occ oci ock oco ocr ocv oeb oec oee oei oeo oer oib oic oie oii oik oio oir oiv okb okc oke oki okk oko okr oo- oob ooc ooi ook ooo oor oov or- orb orc ore ori ork oro orr orv ov- ovb ovc ove ovi ovo ovv rbb rbc rbe rbi rbk rbo rbr rcb rcc rce rci rco rcr rcv re- reb rec ree rei rek reo rer rev rib ric rie rii rik rio rir riv rkb rkc rke rkk rko rkv rob roc roe roi rok roo ror rov rrb rrc rri rrk rrr rvb rvc rve rvi rvo rvr rvv v-e vbc vbi vbk vbo vbr vbv vcc vce vci vco vcr veb vec vee vei vek veo ver vi- vib vic vie vii vik vio vir viv vkb vob voc voe voi vok voo vor vov vrb vrc vre vri vrk vrr vvb vvc vvi vvo vvr vvv

bbbb bbci bbeb bbrc bcbc bccc bcci bcec bcer bcie bcor bcvo bebb bebe bebi bebo beci beck beeb beek beer beic beik beir beke beki beko beo- beok beor berc bere beri berk bero berr bevo bibb bibe bibi bibo bicc bice bici bick bico bieb bier bike biko bio- bioc bioi birb bire biri birk biro birr bive bivi bobb bobe bobi bobo boce bock boco boec boee boeo boer boi- boie boii boke boki boko boob booc booe book boor bor- bore bori bork boro borr bove bovi bovo brcb brce breb brec bree brei brek breo brer brev bric brie brik brio brkb brob broc broe brok broo bror brrr brvi c-bo cbbc cbcc cbce cbcr cbec cbee cber cbir cbko cbkr cbre cbvb cbve cbvr ccbc cccb cccc ccci cccv ccee ccic ccii ccir cciv ccob ccoc ccrc ccre ccri ccvi ccvo cec- cece ceci ceco ceeb ceec ceke ceor cer- cerc cere ceri cero cevo cibc cibe cibi cibo cicc cici cico cicr ciee cier ciii ciko cikr ciob cior cirb circ cire ciri cirk ciro cirr civc cive civo ckbc ckbe ckbi ckck ckco ckcv cker ckob ckoc ckoi ckoo ckor ckrc ckvo cobb cobe cobi cobo coce cock coco coir cok- coke coko coob cook cor- corb corc core cori cork coro corr cove covo crbc crcc crce crcr cre- creb crec cree crei creo crib cric crie crik crkc crob croc croe crok croo cror cvcc cver cvii cvrr ebbc ebbo ebbr ebcc eber ebic eboe eboo ebor ebro ecbc ecbe eccb eccc ecce ecci ecco ecib ecko eco- ecrc ecri ecrr ecrv eeee eeke eeoc eerc eero eick eico eiec eiei eier eike eiki eiko eire ekco ekeb ekek eker ekki ekoi eoir eore eori erbb erbe ercc erce ereb erec erei erer erev eric erie erik erio erke erki erob eroc eroe eroi eroo errc erre erro erve ervi ever evie evir evoe evoo evre evvk i-be ibec ibie ibrc ibri ibro icbc iccb iccc icci icco iccr icec icee icer icke icoc icor icrc icre icrr iecc ieie ieio iere ieri iiie iiii iiio iioi iioo iirc ikee iker ikki ikko ikoo ikri iobi ioci ioee ioii ioio ioke ioko iooi iooo iore iori irbe ircc iree irer iri- iric irie irio irki irob iroc irov irrc irre irri ivbv ivec iver ivic ivie ivor ivre k-ci kbbb kbbc kbbe kbbi kbbk kbbo kbbr kbcb kbce kbci kbck kbco kbcr kbeb kbec kbee kbek kbeo kber kbev kbib kbic kbie kbik kbio kbkb kbkk kbko kbkr kbkv kbob kboc kboe kboi kbok kboo kbov kbrb kbrc kbre kbri kbrk kbro kbrv kbvb kbvc kbvo kbvr kcbc kcbi kcbk kcbr kccb kccc kcci kcck kccr kccv kceb kcec kcee kcei kceo kcic kcie kcii kcir kciv kckc kckk kcko kckr kckv kcob kcoe kcor kcrc kcri kcro kcrr kcrv kcvi kcvk kcvo kcvr kcvv kebb kebc kebe kebi kebr keck keco kecr keek keer keib keii keik keio keir kekb kekc keke keki keko keok ker- kerb kerc kere keri kerk kero kerr kerv keve kevi kibb kibc kibe kibi kibo