a-a a-b aaa aab aad aah aan aao aar aaw ab- aba abb abd abh abn abo abr abw ad- ada adb add adh adn ado adr adw aha ahb ahd ahh ahn aho ahr ahw an- ana anb and anh ann ano anr aoa aob aod aoh aon aoo aor aow ar- ara arb ard arh arn aro arr arw aw- awa awb awd awh awn awo awr aww baa bab bad bah ban bao bar baw bba bbb bbd bbh bbn bbo bbr bbw bda bdb bdd bdh bdo bdr bdw bha bhb bhd bhh bho bhr bhw bna bnb bnd bnn bno bnr bnw boa bob bod boh bon boo bor bow bra brb brd brh brn bro brr brw bwa bwb bwd bwh bwo bwr daa dab dad dah dan dao dar daw dba dbb dbd dbh dbn dbo dbr dda ddb ddd ddh ddn ddo ddr ddw dh- dha dhb dhd dhh dho dhr dhw dna dnb dnd dnh dnn dno dnr dnw doa dob dod doh don doo dor dow dra drb drd drn dro drr drw dwa dwb dwh dwn dwo dwr dww haa hab had hah han hao har haw hba hbb hbd hbh hbn hbo hbr hbw hda hdb hdd hdh hdn hdo hdr hdw hha hhb hhd hhh hhn hho hhr hhw hna hnb hnd hnh hnn hno hnw hoa hob hod hoh hon hoo hor how hr- hra hrb hrd hrh hrn hro hrr hrw hw- hwa hwb hwd hwn hwo hwr hww naa nab nad nah nan nao nar naw nba nbb nbd nbn nbo nbr nbw nda ndb ndd ndh ndn ndo ndr nha nhb nhd nhh nhn nhr nna nnb nnh nnn nno nnw no- noa nob nod noh non noo nor now nra nrb nrd nrn nro nrr nrw nwa nwb nwd nwn nwo nwr oaa oab oad oah oan oao oar oaw ob- oba obb obd obh obn obo obr obw oda odb odd odh odn odo odr oha ohd ohh ohn oho ohr on- ona onb ond onh onn ono onr oo- ooa oob ood ooh oon ooo oor oow or- ora orb ord orh orn oro orr owa owb owd owh own owo oww ra- raa rab rad rah ran rao rar raw rba rbb rbd rbh rbn rbo rbr rbw rda rdb rdd rdh rdn rdo rdr rh- rha rhb rhd rhh rhn rho rhr rna rnb rnd rnh rnn rno rnr rnw roa rob rod roh ron roo ror row rra rrb rrd rrh rrn rrr rwa rwb rwd rwh rwr waa wab wad wah wan wao war waw wba wbb wbd wbn wbo wbr wbw wda wdb wdr wh- wha whb whd whh who whr whw wn- wna wnd wnn wno wnw woa wob wod woh won woo wor wow wr- wra wrd wrh wrn wro wrr wrw wwa wwd wwn wwo www