a-a a-c aaa aac aak aan aao aar aaw ac- aca acc ack acn aco acr acw aka akc akk akn ako akr akw an- ana anc ank ann ano anr aoa aoc aok aon aoo aor aow ar- ara arc ark arn aro arr arw aw- awa awc awk awn awo awr aww c-- caa cac cak can cao car caw cca ccc cck ccn cco ccr ccw cka ckc cko ckw cn- cna cnc cnn cno cnr cnw co- coa coc cok con coo cor cow cra crc crk crn cro crr crw cw- cwa cwc cwk cwn cwo cwr ka- kaa kac kak kan kao kar kaw kca kcc kck kcn kcr kkc kkk kkn kkr kn- kna knc knk knn kno knr koa koc kok kon koo kor kow kra krc krk krn kro krr krw kw- kwa kwc kwk kwo kww naa nac nak nan nao nar naw nca ncc nck ncn nco ncr ncw nka nkc nkk nkn nko nkr nna nnc nnk nnn nno nnw no- noa noc nok non noo nor now nra nrc nrk nrn nro nrr nrw nwa nwc nwn nwo nwr oaa oac oak oan oao oar oaw oc- oca occ ock ocn oco ocr ocw oka okc okk oko okr okw on- ona onc onk onn ono onr oo- ooa ooc ook oon ooo oor oow or- ora orc ork orn oro orr owa owc owk own owo oww ra- raa rac rak ran rao rar raw rca rcc rcn rco rcr rcw rkc rkk rko rna rnc rnn rno rnr rnw roa roc rok ron roo ror row rra rrc rrk rrn rrr rwa rwc rwr waa wac wak wan wao war waw wca wcc wck wcn wco wcr wcw wka wkc wko wkr wkw wn- wna wnc wnn wno wnw woa woc wok won woo wor wow wr- wra wrc wrk wrn wro wrr wrw wwa wwc wwn wwo www