a-ha aaaa aaab aaah aaap aaba aabb aabh aabp aabt aaha aaoo aapa aaph aapo aapt aata aatt abaa abab abap abat abax abb- abba abbb abbo abbt abha abho aboa abob aboh aboo abot abox abpa abpp abta ahab ahah ahat ahha ahoa ahop ahot ahta ahto aoah aoba aopo apah apao apap apat apax apba aph- apha apo- apoo apop apot apox appa apph appt appx apta aptt aptx at-t at-x ataa atab atap atat atax atha atho atob atop atot atta atto attp axat axo- axoa axto axxo ba-x baaa baah baat baba babb babo baha baho baht baoh bapa bapp bapt bata bath bato batt baxt bbbb bbox bhao bhat bhot boab boat boba bobb bobo boha boho boht boob booh boop boot boox bopa bopp bota botb both boto bott boxa bpot btaa btbp btob bttb haab haat haba habo habt haha haho haht hapa happ hata hatb hath hato hatt haxo hbox hhaa hhat hhhh hhpa hhtp hoap hoat hoax hoba hobo hoha hoho hoop hoot hoox hopa hopo hopp hopt hopx hota hotb hoth hoto hotp hott hoxa hpao hpot hpto htab htoh htop htpa htpp http oahp oaph oath obba obbo obot obox ohba ohho ohob ohoh ohta ohto ooaa ooba ooha ooho oooh oooo ootb ootp opah opap opo- oppa oppo opto otap otha otho oto- otoh otoo otpp otta otto oxa- oxo- oxox oxxo paap paat paba pabt pabx paha paho pahp paoh paox papa papb papp pata path pato patt paxo pbpa phah phat phht phob phoh phoo phot phox phpa poat poba pobo poha pooh poop poot pop- popa popo popp popt pota poth poto pott ppap ppoa pppa pppo pppp ppta pptt ptab ptah ptop ptox taa- taat taba tabb tabo taha taho taoa tapa tapo tapp tapt tata tatb tath tato tatt tax- taxa taxo taxt tbox tbta tbtp thaa thao that thax thhp thoo thot thpp thtb toab toat toba tobo tobt toho tooa tooh toot top- topa toph topo topp topt tota toth toto tott tox- toxa toxo toxt tpap tppa tppp tptp ttab ttbb ttop tttt txaa xapo xbox xhhp xoth xoxo xpax xpot xpto xxxo xxxx