a-ii aaaa aaab aaai aaap aaas aaba aabb aabi aabp aabt aaib aaii aais aaoo aapa aapi aapo aaps aapt aasa aasi aass aast aata aatt abaa abab abai abap abas abat abb- abba abbb abbi abbo abbs abbt abia abib abis abit aboa abob aboo abos abot abpa abpi abpp abps abs- absa absi absp abss abta abts aiai aias aiba aibo aiia aiib aioi aipa aipi aips aisa aisb aisi aiso aist aita aiti aits aitt aoba aopo aosp aoss apai apao apap apas apat apba apbs api- apia apio apip apis apit apo- apoo apop apos apot appa apps appt apsa apsi apso apss apta apti apts aptt asaa asab asai asao asap asas asat asba asbo asia asii asio asip asis asit asob asoi asop asos asot aspa aspi aspo asps aspt assa assi asso assp asss asst asta astb asti asto astp asts at-t ataa atab atai atap atas atat atbs atia atip atis atit atob atoi atop atos atot atsb atsi atst atta atti atto attp atts ba-i baaa baas baat baba babb babi babo babs baia baib baio bais bait baos bapa bapi bapp baps bapt basa basi baso bass bast bata bati bato bats batt bbas bbbb bbbs biao biap bias biat biba bibb bibi bibo bibs biis bio- bioi bios biot bipa bipp bips bis- bisa biso bisp biss bist bita bito bits bitt boab boai boas boat boba bobb bobi bobo bobs boi- boii bois boit boob boop boos boot bopa bopp bops bosa bosi boso boss bost bota botb boti boto bots bott bpai bpot bpsa bpti bsaa bsap bsas bsat bsos bspp bsts btaa btbp btob btps btss bttb iaaa iaai iaap iaas iaat iaba iaia iais iapa iapp iaps iapt iasa iasi iaso iasp iata iati ibas ibat ibia ibis ibos ibot ibsa ibss ibtb ibts iias iiii iiio iiis iiit iioi iioo iiop iios iipa iisi iisp iist iita iitt ioba iobi ioii ioio ioit iooi iooo ioos iops ioso iota ioto ipas ipat ipba ipop ipos ippa ippo ipsa ipsi ipso ipsp ipss ipta ipto ipts is-a isai isao isas isat isba isbt isia isis isit iso- isop isos ispa isps issa issi isso issp isss ista isti isto istp ists itaa itai itap itas itat itbs itia itis itoi itoo itos itpa itsa itsi itso itsp itta itto oais oapi oaps oasi oass oast oats obai obas obba obbo obia obis obit oboi obos obot obss obst obts oiba oiii oios oist oita oiti ooaa ooba oobi ooia oooo ooos oops oosa oosi oost ootb ootp oots opap opia opii opio opis opit opo- opos oppa oppi oppo opps opsa opsi opti opto opts osai osap osas osat osba osbp osia osii osip osis osoi osoo osos ossa ossb ossi osso osta osti osts otap otas otbs otis otit oto- otoo otos otpp otsa otso otta otti otto otts paap paas paat paba pabt paia paib paio paip pais pait paos papa papb papi papp paps pasa pasi paso pasp pass past pata pati pato pats patt pbpa pbsa pbsp piai piao pias piat pibb pibi piia piip piob piot pipa pipi pipo pipp pips pisa pisi piso piss pist pita piti pito pits pitt poas poat poba pobo pobs poia poio pois poop poos poot pop- popa popi popo popp pops popt posa posb posi poso poss post pota poti poto pots pott ppap ppib ppoa ppos pppa pppo pppp ppps ppss ppta ppts pptt psap psas psat psbt psia psip psis psoa psoi psos pspi pspp psps pssa psso psst psts ptab ptas ptop ptsa s-ib s-ii s-os saab saap saas saat saba sabb sabi sabo sabs saia saip sais sait saoi saos sapa sapi sapo sapp saps sasa sasi saso sass sast sata satb sati sato sats satt sbaa sbai sbas sbbs sbia sbot sbsa sbsi sbsp sbst siaa siab siai sias siat siba sibi sibo sibs siit siop sios siot sipa sipi sipo sipp sips sipt sisa sisi siss sist sit- sita siti sito sits sitt soap soas soat soba sobo sobp sobs sobt soia sois soit soop soos soot sopa sopi sopo sopp sops sosa sosi soso soss sost sota soto sotp sots sp-a spap spas spat spia spib spio spip spis spit spoo spop spos spot spps spsa spso spsp spss spst spta sptb spto spts ssaa ssab ssao ssap ssas ssat ssis ssit ssop ssot sspa sspo ssps sspt sssa sssb sssi ssss ssta sstb sstp ssts stab stai stap stas stat stbs stia stib stio stip stis stit stoa stob stoo stop stos stot stpp stps stsi stss taa- taas taat taba tabb tabi tabo tabs taia taio taip tais tait taoa taos tapa tapi tapo tapp taps tapt tasa tasb tasi tasp tass tast tata tatb tati tato tats tatt tbas tbbs tbit tbsp tbst tbta tbtp tiaa tiab tiao tias tiba tibi tibs tiit tiop tios tip- tipa tipi tipo tipp tips tipt tisa tisb tisi tiso tiss tist tita titi tito titp tits titt toab toas toat toba tobi tobo tobs tobt tois toit tooa toos toot top- topa topi topo topp tops topt tosa tosb tosi toso toss tost tota toti toto tots tott tpap tpia tppa tppp tpsa tptp tsaa tsai tsao tsat tsia tsis tsob tsoi tsop tsos tspo tsps tspt tssa tssi tsst tsts ttab ttbb ttop ttss tttt