a-a a-c a-z aaa aac aao aar aaw aay aaz ac- aca acc aco acr acw acy acz aoa aoc aoo aor aow ar- ara arc aro arr arw ary arz aw- awa awc awo awr aww awy ay- aya ayc ayo ayr ayw ayz az- aza azo azw azy azz c-- caa cac cao car caw cay caz cca ccc cco ccr ccw ccz co- coa coc coo cor cow coy coz cra crc cro crr crw cry crz cw- cwa cwc cwo cwr cya cyc cyo cyr cyw cz- czc czo czw oaa oac oao oar oaw oc- oca occ oco ocr ocw ocz oo- ooa ooc ooo oor oow or- ora orc oro orr ory orz owa owc owo oww oya oyo oza ozo ozw ozz ra- raa rac rao rar raw ray raz rca rcc rco rcr rcw roa roc roo ror row roy roz rra rrc rrr rwa rwc rwr rwy ry- rya ryc ryo ryr ryy ryz rza rzo rzy waa wac wao war waw way waz wca wcc wco wcr wcw woa woc woo wor wow woy woz wr- wra wrc wro wrr wrw wry wwa wwc wwo www wy- wya wyc wyo wyr wzc yaa yac yao yar yaw yay yaz yca ycc yco ycw ycy yoc yoo yor yow yoy yra yrc yro ywc yyc yyy yyz yzr yzy zaa zac zao zar zay zaz zco zo- zoa zoc zoo zor zow zro zzr zzy zzz