-er -ic bbb bbc bbe bbh bbi bbk bbo bbr bcb bcc bce bch bci bck bco bcr be- beb bec bee beh bei bek beo ber bhb bhc bhe bhh bhi bhk bho bhr bi- bib bic bie bih bii bik bio bir bkb bkc bke bkk bko bkr bob boc boe boh boi bok boo bor brb bre brh bri brk bro brr c-- cbb cbc cbe cbh cbi cbk cbo cbr ccb ccc cce cch cci cck cco ccr ce- ceb cec cee ceh cei cek ceo cer ch- chb chc che chh chi chk cho chr ci- cib cic cie cih cii cik cio cir ckb ckc ckh cki cko co- cob coc coe coh coi cok coo cor crb crc cre crh cri crk cro crr ebb ebc ebe ebh ebi ebk ebo ebr ec- ecb ecc ece ech eci eck eco ecr eeb eec eee eek eeo eer ehb ehc ehe ehh ehi eho ehr eib eic eie eii eik eio eir ekb ekc eke ekh eki eko ekr eo- eob eoc eoe eoh eoi eok eoo eor erb erc ere erh eri erk ero err h-i hbb hbc hbe hbh hbi hbk hbo hbr hcb hcc hce hch hci hck hco hcr he- heb hec hee heh hei hek heo her hhb hhc hhe hhh hhi hhk hho hhr hib hic hie hih hii hik hio hir hkb hkh hki hkk hko hkr hob hoc hoe hoh hoi hok hoo hor hr- hrb hrc hre hrh hri hrk hro hrr ibb ibc ibe ibh ibi ibk ibo ibr icb icc ice ich ici ick ico icr ie- iec iee iei iek ier ihb ihc ihe ihh ihi ihk iho ihr iib iic iie iih iii iio iir ikb ikc ike iki ikk iko ikr io- iob ioc ioe ioh ioi ioo ior ir- irb irc ire iri irk iro irr kbb kbc kbe kbh kbi kbk kbo kbr kcb kcc kce kch kci kck kcr ke- keb kec kee keh kei kek keo ker khe khh khi khk kho khr kib kic kie kih kii kik kio kir kkb kkc kke kkh kki kkk kkr kob koc koe koh koi kok koo kor krc kri krk kro krr o-i ob- obb obc obe obh obi obk obo obr oc- ocb occ och oci ock oco ocr oeb oec oee oeh oei oeo oer ohc ohe ohh ohi oho ohr oib oic oie oii oik oio oir okb okc oke oki okk oko okr oo- oob ooc ooh ooi ook ooo oor or- orb orc ore orh ori ork oro orr rbb rbc rbe rbh rbi rbk rbo rbr rcb rcc rce rch rci rco rcr re- reb rec ree reh rei rek reo rer rh- rhb rhc rhe rhh rhi rho rhr rib ric rie rih rii rik rio rir rkb rkc rke rkk rko rob roc roe roh roi rok roo ror rrb rrc rrh rri rrk rrr

bbbb bbch bbci bbeb bbrc bcbc bccc bcci bcec bcer bche bcie bcor bebb bebe bebi bebo bech beci beck beeb beek beer behr beic beik beir beke beki beko beo- beok beor berc bere beri berk bero berr bhcc bher bhie bhir bhoi bhor bibb bibe bibi bibo bicc bice bich bici bick bico bieb bier bihe bihi bike bikh biko bio- bioc bioi birb bire biri birk biro birr bobb bobe bobi bobo boce boch bock boco boec boee boeo boer boho bohr boi- boie boii boke boki boko boob booc booe booh book boor bor- bore borh bori bork boro borr brcb brce breb brec bree brei brek breo brer bric brie brih brik brio brkb brob broc broe broh brok broo bror brrr c-bo cbbc cbcc cbce cbcr cbec cbee cber cbir cbko cbkr cbre cbrh ccbc cccb cccc ccci ccee cche cchr ccic ccii ccir ccob ccoc ccrc ccre ccri cec- cece ceci ceco ceeb ceec ceke ceor cer- cerc cere ceri cero chce chch chci cheb chec chee cheh chek cher chib chic chie chih chik chir chkb choc choh choi chok choo chor chrb chrc chro chrr cibc cibe cibi cibo cicc cich cici cico cicr ciee cier cihr ciii ciko cikr ciob cior cirb circ cire cirh ciri cirk ciro cirr ckbc ckbe ckbi ckch ckck ckco cker ckob ckoc ckoi ckoo ckor ckrc cobb cobe cobh cobi cobo coce coch cock coco coho coir cok- coke coko coob cooh cook cor- corb corc core cori cork coro corr crbc crcc crce crcr cre- creb crec cree creh crei creo crib cric crie crik crkc crob croc croe croh crok croo cror ebbc ebbo ebbr ebcc eber ebic eboe eboo ebor ebro ecbc ecbe eccb eccc ecce ecci ecco eche echo ecib ecko eco- ecrc ecri ecrr eeee eeke eeoc eerc eero ehcc eheh eher ehre eich eick eico eiec eiei eier eiho eike eiki eiko eire ekch ekco ekeb ekek eker ekho ekki ekoi eoir eore eori erbb erbe ercc erce erch ereb erec erei erer erhc eric erie erih erik erio erke erki erob eroc eroe eroi eroo errc erre erro h-ii hbic hbio hboc hcbc hccb hccc hcch hchi hebb hebe hebi hebo hebr hech heck heeb heek heer hehe heho heic heie heih heik heir heke heor herb herc here heri herk hero herr hhhh hi-c hibi hicc hice hich hick hico hiei hier hihc hihe hihi hiho hiie hike hiki hiob hioc hire hiri hirk hiro hkcc hkir hobe hobo hoce hoch hock hocr hoei hoek hoer hohe hoho hoie hoik hoir hoke hoki hoko hooe hook hoor horc hore hori hork horo horr hree hrib hrob hrrc i-be ibec ibeh ibie ibrc ibri ibro icbc iccb iccc icci icco iccr icec icee icer ichc iche ichi icho ichr icke icoc icor icrc icre icrr iecc ieie ieio ieoh iere ieri ihcc iher ihob ihrc ihre iiie iiii iiio iioi iioo iirc ikee iker ikki ikko ikoo ikri iobi ioci ioee