-er -ic a-a a-b a-c a-i aaa aab aac aae aai aak aao aar aas ab- aba abb abc abe abi abk abo abr abs ac- aca acb acc ace aci ack aco acr acs aea aeb aec aee aei aek aeo aer aes ai- aia aib aic aie aii aik aio air ais aka akb akc ake aki akk ako akr aks aoa aob aoc aoe aoi aok aoo aor aos ar- ara arb arc are ari ark aro arr ars as- asa asb asc ase asi ask aso asr ass baa bab bac bae bai bak bao bar bas bba bbb bbc bbe bbi bbk bbo bbr bbs bca bcb bcc bce bci bck bco bcr bcs be- bea beb bec bee bei bek beo ber bes bi- bia bib bic bie bii bik bio bir bis bka bkb bkc bke bkk bko bkr bks boa bob boc boe boi bok boo bor bos bra brb bre bri brk bro brr brs bsa bsb bsc bse bsi bsk bso bsr bss c-- caa cab cac cae cai cak cao car cas cba cbb cbc cbe cbi cbk cbo cbr cbs cca ccb ccc cce cci cck cco ccr ccs ce- cea ceb cec cee cei cek ceo cer ces ci- cia cib cic cie cii cik cio cir cis cka ckb ckc cki cko cks co- coa cob coc coe coi cok coo cor cos cra crb crc cre cri crk cro crr crs csa csb csc cse csi csk cso csr css eaa eab eac eae eai eak eao ear eas eba ebb ebc ebe ebi ebk ebo ebr ebs ec- eca ecb ecc ece eci eck eco ecr ecs eea eeb eec eee eek eeo eer ees eia eib eic eie eii eik eio eir eis eka ekb ekc eke eki eko ekr eks eo- eoa eob eoc eoe eoi eok eoo eor eos era erb erc ere eri erk ero err ers es- esa esb esc ese esi esk eso esr ess ia- iaa iab iac iae iai iao iar ias iba ibb ibc ibe ibi ibk ibo ibr ibs ica icb icc ice ici ick ico icr ics ie- iea iec iee iei iek ier ies iia iib iic iie iii iio iir iis ika ikb ikc ike iki ikk iko ikr iks io- ioa iob ioc ioe ioi ioo ior ios ir- ira irb irc ire iri irk iro irr irs is- isa isb isc ise isi isk iso isr iss ka- kaa kab kac kae kai kak kao kar kas kba kbb kbc kbe kbi kbk kbo kbr kbs kca kcb kcc kce kci kck kcr kcs ke- kea keb kec kee kei kek keo ker kes kia kib kic kie kii kik kio kir kis kkb kkc kke kki kkk kkr kks koa kob koc koe koi kok koo kor kos kra krc kri krk kro krr krs ksa ksb ksc kse ksi ksk kso ksr kss o-i oaa oab oac oae oai oak oao oar oas ob- oba obb obc obe obi obk obo obr obs oc- oca ocb occ oci ock oco ocr ocs oea oeb oec oee oei oeo oer oes oia oib oic oie oii oik oio oir ois oka okb okc oke oki okk oko okr oks oo- ooa oob ooc ooi ook ooo oor oos or- ora orb orc ore ori ork oro orr ors os- osa osb osc ose osi osk oso osr oss ra- raa rab rac rae rai rak rao rar ras rba rbb rbc rbe rbi rbk rbo rbr rbs rca rcb rcc rce rci rco rcr rcs re- rea reb rec ree rei rek reo rer res ria rib ric rie rii rik rio rir ris rkb rkc rke rkk rko rks roa rob roc roe roi rok roo ror ros rra rrb rrc rri rrk rrr rrs rsa rsb rsc rse rsi rsk rso rsr rss saa sab sac sae sai sak sao sar sas sba sbb sbc sbe sbi sbk sbo sbr sbs sca scb scc sce sci sck sco scr scs se- sea seb sec see sei sek seo ser ses sia sib sic sie sii sik sio sir sis sk- ska skb skc ske ski skk sko skr sks soa sob soc soe soi sok soo sor sos sr- sra srb src sre sri srk sro srr srs ss- ssa ssb ssc sse ssi ssk sso ssr sss

-ase -ose a-ak a-be a-ii a-ok aaaa aaab aaac aaae aaai aaar aaas aaba aabb aabc aabi aaca aacb aacc aace aaci aack aaco aacr aacs aaea aaec aaes aaib aaic aaii aais aaka aake aaoe aaoo aara aarc aare aari aaro aars aasa aasc aase aasi aass abaa abab abac abae abai abak abar abas abb- abba abbb abbe abbi abbo abbr abbs abca abcb abcc abci abcr abcs abec abee aber abes abia abib abic abie abir abis aboa abob abok aboo abor abos abra abrc abri abro abrs abs- absa abse absi abss acaa acab acac acae acai acar acas acba acca accc acce acci acco accs ace- acea acec acek acer aces aci- acia acic acie acir acis acke acks acoa acoe acor acos acr- acra acrc acre acri acro acrr acrs acsa acsc acse acsi acss aeac aeas aebi aebs aecb aeci aeer aeio aeka aer- aera aerc aeri aero aers aesc aess aiai aias aiba aibo aica aicc aice aicr aics aiea aiee aiia aiib aiic aiir aika aike aiki aiko aiks aioc aioi aira aire airi airo airs aisa aisb aise aisi aisk aiso aisr akaa akae akai akao akar akas akca akee aker akes akia akie akik akio akir akis akka akki akko akok akos akr- akra akre aksa aksi aoba aoca aoce aocs aoki aoks aora aorb aors aoss arab arac arae arai arak arar aras arba arbe arbi arbs arc- arca arce arci arco arcs area arec aree arei arek areo ares aria arib arie arii arik ario