a-a a-b a-i aaa aab aah aai aao aar aaw ab- aba abb abh abi abo abr abw aha ahb ahh ahi aho ahr ahw ai- aia aib aih aii aio air aiw aoa aob aoh aoi aoo aor aow ar- ara arb arh ari aro arr arw aw- awa awb awh awi awo awr aww baa bab bah bai bao bar baw bba bbb bbh bbi bbo bbr bbw bha bhb bhh bhi bho bhr bhw bi- bia bib bih bii bio bir biw boa bob boh boi boo bor bow bra brb brh bri bro brr brw bwa bwb bwh bwi bwo bwr h-i haa hab hah hai hao har haw hba hbb hbh hbi hbo hbr hbw hha hhb hhh hhi hho hhr hhw hia hib hih hii hio hir hiw hoa hob hoh hoi hoo hor how hr- hra hrb hrh hri hro hrr hrw hw- hwa hwb hwi hwo hwr hww ia- iaa iab iah iai iao iar iaw iba ibb ibh ibi ibo ibr ibw iha ihb ihh ihi iho ihr iia iib iih iii iio iir iiw io- ioa iob ioh ioi ioo ior iow ir- ira irb iri iro irr iwa iwb iwi iwo iwr iww o-i oaa oab oah oai oao oar oaw ob- oba obb obh obi obo obr obw oha ohh ohi oho ohr oia oib oii oio oir oo- ooa oob ooh ooi ooo oor oow or- ora orb orh ori oro orr owa owb owh owi owo oww ra- raa rab rah rai rao rar raw rba rbb rbh rbi rbo rbr rbw rh- rha rhb rhh rhi rho rhr ria rib rih rii rio rir roa rob roh roi roo ror row rra rrb rrh rri rrr rwa rwb rwh rwi rwr waa wab wah wai wao war waw wba wbb wbi wbo wbr wbw wh- wha whb whh whi who whr whw wia wib wii wir woa wob woh woi woo wor wow wr- wra wrh wri wro wrr wrw wwa wwi wwo www