a-a a-b a-i aaa aab aaf aai aao aap aar ab- aba abb abf abi abo abp abr af- afa afb aff afi afo afp afr ai- aia aib aif aii aio aip air aoa aob aof aoi aoo aop aor ap- apa apb apf api apo app apr ar- ara arb arf ari aro arp arr b-p baa bab baf bai bao bap bar bba bbb bbf bbi bbo bbp bbr bfa bfb bff bfi bfo bfp bfr bi- bia bib bif bii bio bip bir boa bob bof boi boo bop bor bpa bpb bpf bpi bpo bpp bpr bra brb brf bri bro brp brr faa fab faf fai fao fap far fba fbb fbf fbi fbo fbp fbr ffa fff ffi ffo ffp ffr fia fib fif fii fip fir foa fob fof foi foo fop for fpa fpb fpi fpo fpp fpr fra frb frf fri fro frp frr i-f ia- iaa iab iaf iai iao iap iar iba ibb ibf ibi ibo ibp ibr ifa ifb iff ifi ifo ifp ifr iia iib iif iii iio iip iir io- ioa iob iof ioi ioo iop ior ipa ipb ipf ipi ipo ipp ipr ir- ira irb irf iri iro irp irr o-i oaa oab oaf oai oao oap oar ob- oba obb obf obi obo obp obr of- ofa ofb off ofi ofo ofp ofr oia oib oif oii oio oip oir oo- ooa oob oof ooi ooo oop oor op- opa opb opf opi opo opp opr or- ora orb orf ori oro orp orr p-p paa pab paf pai pao pap par pba pbb pbf pbi pbo pbp pbr pfa pfb pff pfi pfo pfp pfr pia pib pif pii pio pip pir poa pob pof poi poo pop por ppa ppb ppf ppi ppo ppp ppr pra prb prf pri pro prp prr ra- raa rab raf rai rao rap rar rba rbb rbf rbi rbo rbp rbr rfa rfb rff rfi rfo rfp rfr ria rib rif rii rio rip rir roa rob rof roi roo rop ror rpa rpb rpf rpi rpo rpp rpr rra rrb rrf rri rrp rrr

a-ii aaaa aaab aaaf aaai aaap aaar aaba aabb aabi aabp aafa aafb aaff aafi aaib aaii aaoo aapa aapi aapo aara aari aaro aarp abaa abab abaf abai abap abar abb- abba abbb abbi abbo abbr abff abia abib abir aboa abob abof aboo abor abpa abpi abpp abpr abra abri abro afaa afao afap afar affa affi affo afia afib afif afir afoa afoo afor afpa afr- afra afri afro aiai aiba aibo aiff aiia aiib aiir aioi aipa aipf aipi aira airi airo airp aoba aopo aora aorb apai apao apap apar apba apbr apfa apfo api- apia apio apip apo- apof apoo apop apor appa appr apra apri apro arab araf arai arap arar arba arbi arfa arfb arff aria arib arif arii ario arip aroa arob aroi aroo aror arpa arpi arr- arra arri arro arrr ba-i baaa baaf baar baba babb babi babo babr baff bafo baia baib baio bair bapa bapi bapp bar- bara barb barf bari baro barr bbbb bbpr bfpo bfpp biaf biao biap biar biba bibb bibi bibo bifa biff bifi bio- bioi bipa bipp bira birb biri biro birr boab boai boar boba bobb bobi bobo bofa boff boi- boii boob boof boop boor bopa bopp bor- bora borf bori boro borr bpai brab braf brai brao bria brio broa brob broo bror brrr faaa faap faba fabi fabo fafa faff fafi fafo faio fair fapa fapp fara farb faro farp farr fbar fbop ffar ffff ffii ffrr fiaa fiaf fiap fiar fiba fibp fifa fiff fifi fifo fiii fior fipa fipp fira foaf foar foba fofo foia foof fopp for- fora forb fori foro forr fpaa fpra fprf frab frap fria frib frio frip frob frop iaaa iaai iaap iaba iaff iafp iaia iapa iapf iapp iara ibar ibfi ibia ibra ibri ibro ifaa ifao ifar ifbb ifor ifpa ifpo ifra ifrb ifrf ifri iifa iiii iiio iioi iioo iiop iipa iipf iira ioba iobi ioii ioio ioof iooi iooo iora iori ipaf ipba ipop ippa ippf ippo ippr ipri iraf irai irao irap irar irbp iri- iria irio irip irob irop irpa irra irri oafo oapi oara obai obba obbo obia oboi obor obra obri obro off- offa offo offr ofor ofra oiba oiii oira ooaa ooba oobi ooff ooia oooo oora opap opar opia opii opio opo- opor oppa oppi oppo opra orab orai orao orar orba orbb orbi orbo orff orfi ori- oria orif orio oro- orof oror orpi orra orri orro paap paar paba pafa paff paia paib paio paip pair papa papb papi papp papr par- para parf pari paro parp parr pbar pbpa pbrf pfaa pfff pffr pfra piaf piai piao pibb pibi pifa piff piia piip piob pipa pipi pipo pipp pira piri piro pirr poar poba pobo poff pofi poia poio poof poop poor pop- popa popi popo popp pora porb pori poro porr ppap ppar ppfa ppib ppif ppoa pppa pppo pppp pprf prai prao prar pri- pria prif prii pro- proa prob prof proo prop prri raab raaf raba rabb rabi rabo rafa raff rafi raia raif raii raip rair raob raop rapa rapi rapp rara rarb rarf rari raro rbaf rbbb rbbr riaa riab riai rib- riba ribo rifa riff riia riif ripa ripi ripp ripr riri roab roaf roap roar rob- roba robb robi robo roff rofo roia roif roio roir roob roof rooi roop roor ropa ropo rora rori roro rpii rpob rpof rrif rrrr

-aaa- a-a-p a-fib a-iii aaaai aaaip aabaa aabba aabra aafir aaiib aaria aarop abaab ababa abaia abair abapo abara abari abbai abbar abbia abfab abio- abipa abira aboab abobo abora abrar afair afara afari affif affor afifa afro- afrob aiaff aiaia aibar aiboa aifar airai airba airof airor apair apapa apar- apara apbio apipa apiro apoop apoor apopa apopo