a-a a-b a-i aaa aab aag aai aao aar aas ab- aba abb abg abi abo abr abs ag- aga agb agg agi ago agr ags ai- aia aib aig aii aio air ais aoa aob aog aoi aoo aor aos ar- ara arb arg ari aro arr ars as- asa asb asg asi aso asr ass baa bab bag bai bao bar bas bba bbb bbg bbi bbo bbr bbs bga bgb bgg bgi bgo bgr bgs bi- bia bib big bii bio bir bis boa bob bog boi boo bor bos bra brb brg bri bro brr brs bsa bsb bsg bsi bso bsr bss gaa gab gag gai gao gar gas gba gbg gbi gbo gbr gbs gga ggb ggg ggi ggo ggr ggs gia gib gig gii gio gir gis goa gob gog goi goo gor gos gra grb grg gri gro grr grs gsa gsb gsg gsi gso gsr gss ia- iaa iab iag iai iao iar ias iba ibb ibg ibi ibo ibr ibs iga igb igg igi igo igr igs iia iib iii iio iir iis io- ioa iob iog ioi ioo ior ios ir- ira irb irg iri iro irr irs is- isa isb isg isi iso isr iss o-i oaa oab oag oai oao oar oas ob- oba obb obg obi obo obr obs oga ogg ogi ogo ogs oia oib oii oio oir ois oo- ooa oob oog ooi ooo oor oos or- ora orb org ori oro orr ors os- osa osb osg osi oso osr oss ra- raa rab rag rai rao rar ras rba rbb rbg rbi rbo rbr rbs rga rgb rgg rgi rgo rgr rgs ria rib rig rii rio rir ris roa rob rog roi roo ror ros rra rrb rrg rri rrr rrs rsa rsb rsg rsi rso rsr rss saa sab sag sai sao sar sas sba sbb sbg sbi sbo sbr sbs sga sgb sgg sgi sgo sgr sgs sia sib sig sii sio sir sis soa sob sog soi soo sor sos sr- sra srb srg sri sro srr srs ss- ssa ssb ssg ssi sso ssr sss

a-ii aaaa aaab aaai aaar aaas aaba aabb aabi aaib aaii aais aaoo aara aari aaro aars aasa aasi aass abaa abab abag abai abar abas abb- abba abbb abbi abbo abbr abbs abia abib abig abir abis aboa abob aboo abor abos abra abri abro abrs abs- absa absi abss ag-o agag agai agao agar agas agba agbo agga aggi agia agib agig agii agio agir agis agob agog agoo agos agra agri agro agsa agsg aiai aias aiba aibo aiga aigo aiia aiib aiir aioi aira airi airo airs aisa aisb aisg aisi aiso aisr aoba aora aorb aors aoss arab arag arai arar aras arba arbi arbs arga argb argi argo args aria arib arig arii ario aris aroa arob aroi aroo aror aros arr- arra arrg arri arro arrr arrs ars- arsa arsi arso asaa asab asag asai asao asar asas asba asbo asia asii asio asir asis asob asog asoi asor asos asra asrg asro asrs assa assi asso assr asss ba-i baaa baar baas baba babb babi babo babr babs baga bagg bagi bago bags baia baib baig baio bair bais baos bar- bara barb barg bari baro barr bars basa basi baso bass bbas bbbb bbbs bbga bbrg bggs bgia biao biar bias biba bibb bibi bibo bibs biga bigb bigg bigo bigs biis bio- biog bioi bios bira birb birg biri biro birr birs bis- bisa biso biss boab boag boai boar boas boba bobb bobi bobo bobs boga bogg bogi bogo bogs boi- boii bois boob boog boor boos bor- bora borg bori boro borr bors bosa bosi boso boss brab brag brai brao bras bria brig brio bris broa brob brog broo bror bros brrr brrs brsb brsr bsaa bsas bsgs bsos bsra gaar gaas gaba gabb gabi gabo gabr gabs gaga gagg gagi gago gags gaia gaig gair gais gaos gara garb garg gari garo garr gars gasa gasb gasi gaso gasr gass gbag gbas gbbo gbbs gggg ggss giaa giai gias giba gibb gibs giga gigg gigi gigo gigs giis giog gioi gira girg giri giro girr girs gisa giss goai goar goas goba gobi gobo gobs goga gogi gogo gogs gois goog gooi goor goos gora gorb gorg gori goro gorr gors gosi goso goss grab grai gras grbr gria grib grig gris grob grog groi groo gror gros grrr grrs grss gsab gsis gsos i-go iaaa iaai iaas iaba iago iags iaia iais iara iars iasa iasi iaso iasr ibar ibas ibga ibia ibis ibos ibra ibri ibro ibsa ibss igar igas igba igbo igga iggs igia igis igoo igor igra igri igso iias iiii iiio iiis iioi iioo iios iira iirs iisi iisr ioba iobi ioii ioio iooi iooo ioos iora iorg iori iors ioso irai irao irar iras irgs iri- iria irig irio iris irob irra irri irrs irsa irsg is-a isai isao isar isas isba isia isis iso- isor isos isra isrg isri issa issi isso issr isss oais oara oars oasi oass obai obas obba obbo obia obis oboi obor obos obra obri obro obsr obss ogai ogar ogb ogba oggi ogoa ogog ogoi ogra ogri ogro ogsi oiba oigo oiii oios oira ooaa ooba oobi ooia oooo ooos oora oosa oosi orab orai orao orar oras orba orbb orbi orbo orbs orga orgo orgs ori- oria orig orio oris oro- oror oros orra orri orro orrs orsa orsi orso osag osai osar osas osba osgi osia osii osis osoi osoo osor osos osro ossa ossb ossi osso raab raag raas raba rabb rabi rabo rabs raga ragg ragi rago rags raia raig raii rair rais raob raos rara rarb rari raro rars rasa rasi raso rass rbbb rbbr rbbs rbis rbss rgba rgbi riaa riab riai rias rib- riba ribo ribs riga rigg rigi rigo rigs riia riis rios riri rirs risa risi