a-ii aaaa aaab aaaf aaai aaar aaas aaba aabb aabi aabt aafa aafb aaff aafi aaib aaii aais aaoo aara aari aaro aars aart aasa aasf aasi aass aast aata aatf aatt abaa abab abaf abai abar abas abat abb- abba abbb abbi abbo abbr abbs abbt abff abia abib abir abis abit aboa abob abof aboo abor abos abot abra abri abro abrs abs- absa absf absi abss abta abts afaa afao afar afat afbs affa affi affo affs afft afia afib afif afir afis afit afoa afoo afor afr- afra afri afro afrs afsa afsb afst afta afts aiai aias aiba aibo aiff aifs aiia aiib aiir aioi aira airi airo airs airt aisa aisb aisi aiso aisr aist aita aitf aiti aitr aits aitt aoba aora aorb aors aort aoss aotf arab araf arai arar aras arat arba arbi arbs arfa arfb arff arfs arft aria arib arif arii ario aris arit aroa arob aroi aroo aror aros arr- arra arri arro arrr arrs arrt ars- arsa arsi arso arst arta arti arto artr arts asaa asab asaf asai asao asar asas asat asba asbo asfa asfi asia asif asii asio asir asis asit asob asof asoi asor asos asot asra asro asrs assa assi asso assr asss asst asta astb asti asto astr asts at-t ataa atab atai atar atas atat atbs atfb atfs atia atif atis atit atob atof atoi ator atos atot atra atri atro atsb atsi atst atta atti atto attr atts ba-i baaa baaf baar baas baat baba babb babi babo babr babs baff bafo baft baia baib baio bair bais bait baos bar- bara barb barf bari baro barr bars bart basa basf basi baso bass bast bata batf bati bato bats batt bbas bbbb bbbs bfas bffs bfsi bfsr bfta bfts bftt biaf biao biar bias biat biba bibb bibi bibo bibs bifa biff bifi biis bio- bioi bios biot bira birb biri biro birr birs birt bis- bisa biso biss bist bita bito bits bitt boab boai boar boas boat boba bobb bobi bobo bobs bofa boff bofs boi- boii bois boit boob boof boor boos boot bor- bora borf bori boro borr bors bort bosa bosi boso boss bost bota botb boti boto bots bott brab braf brai brao bras brat bria brio bris brit broa brob broo bror bros brot brrr brrs brsb brsr brst bsaa bsas bsat bsfa bsff bsfs bsos bsra bsts btaa btaf btob btor btrt btss bttb faaa faas faba fabi fabo fabs fafa faff fafi fafo faio fair fais fait fara farb faro farr fars fart fasa fasi faso fass fast fata fatf fati fato fats fatt fbar fbis fbrs ffar ffff ffii ffrr ffsa ffss fftf fiaa fiaf fiar fias fiat fiba fibs fifa fiff fifi fifo fift fiii fior fios fira firs fisa fisi fiss fist fita fiti fits fitt foaf foar foba fobs fobt fofo foia fois foof foos foot for- fora forb fori foro forr fors fort fosa fosb fosi foso foss fost fota foti foto fots fott frab fras frat fria frib frio fris frit frob fros frot frsb frso frst frta fsai fsas fsfi fsfo fsia fsra fssa fssf fsta ftii ftos ftrs ftsa ftsr iaaa iaai iaas iaat iaba iaff iaia iais iara iars iart iasa iasi iaso iasr iata iati ibar ibas ibat ibfi ibia ibis ibos ibot ibra ibri ibro ibsa ibsf ibss ibtb ibts ifaa ifao ifar ifas ifat ifbb ifis ifit ifor ifra ifrb ifrf ifri ifsa ifsb ifso ifta ifto iias iifa iiii iiio iiis iiit iioi iioo iios iira iirs iisi iisr iist iita iitr iitt ioba iobi ioii ioio ioit ioof iooi iooo ioos iora iori iors ioso iota iotf ioto iraf irai irao irar iras iri- iria irio iris irob irra irri irrs irsa irsf irta irtf irti irts is-a isaf isai isao isar isas isat isba isbt isfa isia isis isit iso- isof isor isos isra isri issa issf issi isso issr isss ista isti isto istr ists itaa itaf itai itar itas itat itbs itfa itia itif itis itof itoi itoo itor itos itra itrf itri itrs itsa itsf itsi itso itta ittf itto oafo oafs oais oara oars oasi oass oast oats obai obas obba obbo obia obis obit oboi obor obos obot obra obri obro obsr obss obst obts ofas off- offa offo offr offs ofit ofor ofra ofst ofta oiba oiii oios oira oirt oist oita oiti ooaa ooba oobi ooff oofs ooia oooo ooos oora oort oosa oosi oost ootb oots orab orai orao orar oras orat orba orbb orbi orbo orbs orff orfi orfs ori- oria orif orio oris orit oro- orof oror oros orot orra orri orro orrs orsa orsi orso orta orto orts osaf osai osar osas osat osba osfa osia osii osis osoi osoo osor osos osro ossa ossb ossi osso osta osti ostr osts otar otas otbs otif otis otit oto- otof otoo otor otos otra otro otrs otsa otso otta otti otto otts raab raaf raas raat raba rabb rabi rabo rabs rafa raff rafi raft raia raif raii rair rais rait raob raos rara rarb rarf rari raro rars rasa rasi raso rass rast rata ratf rati rato rats ratt rbaf rbbb rbbr rbbs rbis rbss rbst riaa riab riai rias riat rib- riba ribo ribs rifa riff rifs rift riia riif riis rios riot riri rirs risa risi riso riss rist rita riti rito rits ritt roab roaf roar roas roat rob- roba robb robi robo robs robt roff rofo roia roif roio roir rois roit roob roof rooi roor roos root rora rori roro rort rosa rosi roso ross rost rota roti roto rotr rots rott rras rrat rrif rrrr rsaa rsaf rsai rsbi rsis rsos rssa rsts rtai rtas rtbf rtfb rtss rtts s-ib s-ii s-os saab saaf saar saas saat saba sabb sabi sabo sabr sabs safa safb saff safi safo safr saft saia saif sair sais sait saoi saor