a-ii aaaa aaab aaai aaap aaar aaas aaba aabb aabi aabp aabt aaib aaii aais aaoo aapa aapi aapo aaps aapt aara aari aaro aarp aars aart aasa aasi aass aast aata aatt abaa abab abai abap abar abas abat abb- abba abbb abbi abbo abbr abbs abbt abia abib abir abis abit aboa abob aboo abor abos abot abpa abpi abpp abpr abps abra abri abro abrs abs- absa absi absp abss abta abts aiai aias aiba aibo aiia aiib aiir aioi aipa aipi aips aira airi airo airp airs airt aisa aisb aisi aiso aisr aist aita aiti aitr aits aitt aoba aopo aora aorb aors aort aosp aoss apai apao apap apar apas apat apba apbr apbs api- apia apio apip apis apit apo- apoo apop apor apos apot appa appr apps appt apra apri apro aprs aprt apsa apsi apso apss apta apti apts aptt arab arai arap arar aras arat arba arbi arbs aria arib arii ario arip aris arit aroa arob aroi aroo aror aros arpa arpi arps arr- arra arri arro arrr arrs arrt ars- arsa arsi arso arst arta arti arto artr arts asaa asab asai asao asap asar asas asat asba asbo asia asii asio asip asir asis asit asob asoi asop asor asos asot aspa aspi aspo aspr asps aspt asra asro asrs assa assi asso assp assr asss asst asta astb asti asto astp astr asts at-t ataa atab atai atap atar atas atat atbs atia atip atis atit atob atoi atop ator atos atot atpr atra atri atro atrp atsb atsi atst atta atti atto attp attr atts ba-i baaa baar baas baat baba babb babi babo babr babs baia baib baio bair bais bait baos bapa bapi bapp baps bapt bar- bara barb bari baro barr bars bart basa basi baso bass bast bata bati bato bats batt bbas bbbb bbbs bbpr biao biap biar bias biat biba bibb bibi bibo bibs biis bio- bioi bios biot bipa bipp bips bira birb biri biro birr birs birt bis- bisa biso bisp biss bist bita bito bits bitt boab boai boar boas boat boba bobb bobi bobo bobs boi- boii bois boit boob boop boor boos boot bopa bopp bops bor- bora bori boro borr bors bort bosa bosi boso boss bost bota botb boti boto bots bott bpai bpot bpsa bpti brab brai brao bras brat bria brio bris brit broa brob broo bror bros brot brrr brrs brsb brsr brst bsaa bsap bsas bsat bsos bspp bspr bsra bsts btaa btbp btob btor btps btrt btss bttb iaaa iaai iaap iaas iaat iaba iaia iais iapa iapp iaps iapt iara iars iart iasa iasi iaso iasp iasr iata iati ibar ibas ibat ibia ibis ibos ibot ibra ibri ibro ibsa ibss ibtb ibts iias iiii iiio iiis iiit iioi iioo iiop iios iipa iira iirs iisi iisp iisr iist iita iitr iitt ioba iobi ioii ioio ioit iooi iooo ioos iops iora iori iors ioso iota ioto ipas ipat ipba ipop ipos ippa ippo ippr ipri ipsa ipsi ipso ipsp ipss ipta ipto ipts irai irao irap irar iras irbp iri- iria irio irip iris irob irop irpa irps irra irri irrs irsa irsp irta irti irtp irts is-a isai isao isar isas isat isba isbt isia isis isit iso- isop isor isos ispa ispr isps isra isri isrp issa issi isso issp issr isss ista isti isto istp istr ists itaa itai itap itar itas itat itbs itia itis itoi itoo itor itos itpa itra itri itrs itsa itsi itso itsp itta itto oais oapi oaps oara oars oasi oass oast oats obai obas obba obbo obia obis obit oboi obor obos obot obra obri obro obsr obss obst obts oiba oiii oios oira oirt oist oita oiti ooaa ooba oobi ooia oooo ooos oops oora oort oosa oosi oost ootb ootp oots opap opar opia opii opio opis opit opo- opor opos oppa oppi oppo opps opra opsa opsi opti opto opts orab orai orao orar oras orat orba orbb orbi orbo orbs ori- oria orio oris orit oro- oror oros orot orpi orps orra orri orro orrs orsa orsi orso orta orto orts osai osap osar osas osat osba osbp osia osii osip osis osoi osoo osor osos osro ossa ossb ossi osso osta osti ostr osts otap otar otas otbs otis otit oto- otoo otor otos otpp otra otro otrs otsa otso otta otti otto otts paap paar paas paat paba pabt paia paib paio paip pair pais pait paos papa papb papi papp papr paps par- para pari paro parp parr pars part pasa pasi paso pasp pass past pata pati pato patr pats patt pbar pbpa pbrs pbsa pbsp piai piao pias piat pibb pibi piia piip piob piot pipa pipi pipo pipp pips pira piri piro pirr pirs pisa pisi piso piss pist pita piti pito pitr pits pitt poar poas poat poba pobo pobs poia poio pois poop poor poos poot pop- popa popi popo popp pops popt pora porb pori poro porr pors port posa posb posi poso poss post pota poti poto pots pott ppap ppar ppib ppoa ppos pppa pppo pppp ppps ppss ppta ppts pptt prai prao prar pras prat prbs pri- pria prii pris pro- proa prob proo prop pros prot prps prri prrs prsa prsi prso prss prti prtp prtr psap psas psat psbr psbt psia psip psis psoa psoi psos pspi pspp pspr psps psrp pssa psso psst psts ptab ptas ptop ptsa raab raas raat raba rabb rabi rabo rabs raia raii raip rair rais rait raob raop raos rapa rapi rapp raps rapt rara rarb rari raro rars rasa rasi raso rasp rass rast rata rati rato ratp rats ratt rbbb rbbr rbbs rbis rbsp rbss rbst riaa riab riai rias riat rib- riba ribo ribs riia riis rios riot ripa ripi ripp ripr rips ript riri rirs risa risi riso risp riss rist rita riti rito rits ritt