a-a a-b a-c aaa aab aac aad aak aao aar aaw ab- aba abb abc abd abk abo abr abw ac- aca acb acc acd ack aco acr acw ad- ada adb adc add adk ado adr adw aka akb akc akd akk ako akr akw aoa aob aoc aod aok aoo aor aow ar- ara arb arc ard ark aro arr arw aw- awa awb awc awd awk awo awr aww baa bab bac bad bak bao bar baw bba bbb bbc bbd bbk bbo bbr bbw bca bcb bcc bcd bck bco bcr bda bdb bdc bdd bdk bdo bdr bdw bka bkb bkc bkk bko bkr bkw boa bob boc bod bok boo bor bow bra brb brd brk bro brr brw bwa bwb bwc bwd bwk bwo bwr c-- caa cab cac cad cak cao car caw cba cbb cbc cbd cbk cbo cbr cbw cca ccb ccc ccd cck cco ccr ccw cda cdb cdc cdd cdk cdo cdr cdw cka ckb ckc ckd cko ckw co- coa cob coc cod cok coo cor cow cra crb crc crd crk cro crr crw cw- cwa cwb cwc cwd cwk cwo cwr daa dab dac dad dak dao dar daw dba dbb dbc dbd dbk dbo dbr dca dcb dcc dcd dck dco dcr dcw dda ddb ddc ddd ddk ddo ddr ddw dka dkb dkc dkk dko dkr dkw doa dob doc dod dok doo dor dow dra drb drc drd drk dro drr drw dwa dwb dwc dwo dwr dww ka- kaa kab kac kad kak kao kar kaw kba kbb kbc kbd kbk kbo kbr kbw kca kcb kcc kcd kck kcr kda kdb kdc kdk kdo kdr kkb kkc kkk kkr koa kob koc kod kok koo kor kow kra krc krd krk kro krr krw kw- kwa kwc kwd kwk kwo kww oaa oab oac oad oak oao oar oaw ob- oba obb obc obd obk obo obr obw oc- oca ocb occ ocd ock oco ocr ocw oda odb odc odd odo odr oka okb okc okd okk oko okr okw oo- ooa oob ooc ood ook ooo oor oow or- ora orb orc ord ork oro orr owa owb owc owd owk owo oww ra- raa rab rac rad rak rao rar raw rba rbb rbc rbd rbk rbo rbr rbw rca rcb rcc rcd rco rcr rcw rda rdb rdc rdd rdo rdr rkb rkc rkk rko roa rob roc rod rok roo ror row rra rrb rrc rrd rrk rrr rwa rwb rwc rwd rwr waa wab wac wad wak wao war waw wba wbb wbc wbd wbo wbr wbw wca wcb wcc wcd wck wco wcr wcw wda wdb wdc wdr wka wkb wkc wkd wko wkr wkw woa wob woc wod wok woo wor wow wr- wra wrc wrd wrk wro wrr wrw wwa wwc wwd wwo www

a-ak a-do a-ok a-wa aaaa aaab aaac aaad aaar aaba aabb aabc aabd aabw aaca aacb aacc aacd aack aaco aacr aada aadc aaka aaoo aaow aara aarc aard aaro aaww abaa abab abac abad abak abar abaw abb- abba abbb abbo abbr abca abcb abcc abcd abcr abcw abda abdo aboa abob abod abok aboo abor abow abra abrc abro abwa abwr acaa acab acac acad acar acba acca accc accd acco acda acdb acdc ackd ackw acoa acod acor acow acr- acra acrc acro acrr acwa acww adaa adab adac adad adak adao adar adaw adba adbc adcc adda addc addd addo addr adob adoc adod adok adoo ador adra adro adwa akaa akao akar akca akka akko akok akr- akra akwa aoba aoca aora aorb aowd arab arac arad arak arar araw arba arc- arca arco arda ardc ardo arka arko aroa arob arod aroo aror arow arr- arra arrc arrk arro arrr arwa awac awad awar awka awoo awow awro awwa baaa baad baak baar baba babb babo babr bac- baca bacc back baco bada badb badd bado badr bak- baka bako bakr bar- bara barb barc bard bark baro barr baw- bawd bawk bbad bbbb bbdd bbdo bbrc bbwc bbwr bcaa bcar bcbc bcca bccc bcda bcor bcra bd-r bdbc bddc boab boac boad boak boar boba bobb bobo bobw boca bock boco boda bodb bodo boka boko boob booc bood book boor boow bor- bora bord bork boro borr borw bowa bowd bowk bowr brab brac brad brak brao braw brca brcb brcw brda brdo brka brkb broa brob broc brod brok broo bror brow brrr bwaa bwoc c-bo c-cd caaa caab caac caba cabo cac- caca cacc cack caco cacr cacw cada cadc cadd cado cadr cadw caka caod caor cara carb carc card cark caro carr cawk cbac cbar cbbc cbca cbcc cbcr cbdb cbdc cbdo cbka cbko cbkr cbrd cbwa cbwd ccaa ccab ccac ccad ccar ccba ccbc ccca cccb cccc ccdc ccdr cckw ccob ccoc ccod ccow ccra ccrc cd-r cdaa cdac cdad cdba cdda cddb cddr ckac ckbc ckck ckco ckcw ckdo ckoa ckob ckoc ckoo ckor ckrc ckrd ckrw ckwd ckwr ckww coad coak coba cobb cobo coca cock coco coda codd cok- coka coko coob cood cook cor- cora corb corc cord cork coro corr cowd crab crac crar craw crbc crca crcc crcr crda crdc crkc crob croc crod crok croo cror crow crwd cwac cwrw d-bo daab daad daar daba dabb dabo daca dada dado daka dako dara darb darc dard dark daro darr dawa dawd dawk dawo dawr dbar dbcc dcbc dcca dccb dccc dcdb dcra dcrk dddd ddoc ddrc dkba dkdc doab doak doar doba dobb doca dock doco dod- doda dodd dodo doka doko doob dood dook door dora dorc dord dork doro dorr dowa dowb dowd dowk dowr draa drab drac drad drak drar draw drba drbc drca drda drkw drob drod drow drra dwac dwad dwar dwbr dwcw dwdd dwkc dwok dwor dwrd dwrk dwrw dwww kaaa kaab kaak kaar kaba kabb kabc kabd kabo kabr kabw