a-a a-b a-i aaa aab aad aai aao aap aar ab- aba abb abd abi abo abp abr ad- ada adb add adi ado adp adr ai- aia aib aid aii aio aip air aoa aob aod aoi aoo aop aor ap- apa apb apd api apo app apr ar- ara arb ard ari aro arp arr b-p baa bab bad bai bao bap bar bba bbb bbd bbi bbo bbp bbr bda bdb bdd bdi bdo bdp bdr bi- bia bib bid bii bio bip bir boa bob bod boi boo bop bor bpa bpb bpd bpi bpo bpp bpr bra brb brd bri bro brp brr daa dab dad dai dao dap dar dba dbb dbd dbi dbo dbp dbr dda ddb ddd ddi ddo ddp ddr di- dia dib did dii dio dip dir doa dob dod doi doo dop dor dpa dpb dpd dpi dpo dpp dpr dra drb drd dri dro drp drr i-d ia- iaa iab iad iai iao iap iar iba ibb ibd ibi ibo ibp ibr ida idb idd idi ido idp idr iia iib iid iii iio iip iir io- ioa iob iod ioi ioo iop ior ipa ipb ipd ipi ipo ipp ipr ir- ira irb ird iri iro irp irr o-i oaa oab oad oai oao oap oar ob- oba obb obd obi obo obp obr oda odb odd odi odo odp odr oia oib oid oii oio oip oir oo- ooa oob ood ooi ooo oop oor op- opa opb opd opi opo opp opr or- ora orb ord ori oro orp orr p-p paa pab pad pai pao pap par pba pbb pbd pbi pbo pbp pbr pda pdb pdd pdi pdo pdp pdr pia pib pid pii pio pip pir poa pob pod poi poo pop por ppa ppb ppd ppi ppo ppp ppr pra prb prd pri pro prp prr ra- raa rab rad rai rao rap rar rba rbb rbd rbi rbo rbp rbr rda rdb rdd rdi rdo rdp rdr ria rib rid rii rio rip rir roa rob rod roi roo rop ror rpa rpb rpd rpi rpo rpp rpr rra rrb rrd rri rrp rrr

a-do a-ii aaaa aaab aaad aaai aaap aaar aaba aabb aabd aabi aabp aada aadi aaib aaii aaoo aapa aapi aapo aara aard aari aaro aarp abaa abab abad abai abap abar abb- abba abbb abbi abbo abbr abda abdi abdo abia abib abid abir aboa abob abod aboo abor abpa abpd abpi abpp abpr abra abri abro adaa adab adad adai adao adap adar adba adbi adda addd addi addo addr adia adib adio adip adir adob adod adoo ador adp- adra adro aiai aiba aibo aida aidb aidi aidr aiia aiib aiid aiir aioi aipa aipi aira aird airi airo airp aoba aopo aora aorb apai apao apap apar apba apbr apda apdd api- apia apid apio apip apo- apod apoo apop apor appa appd appr apra apri apro arab arad arai arap arar arba arbi arda ardi ardo aria arib arid arii ario arip aroa arob arod aroi aroo aror arpa arpi arr- arra arri arro arrr ba-i baaa baad baar baba babb babi babo babr bada badb badd badi bado badr baia baib baid baio bair bapa bapi bapp bar- bara barb bard bari baro barr bbad bbbb bbdd bbdo bbpr bd-r bdii biad biao biap biar biba bibb bibi bibo bida bidi bido bidr bio- bioi bipa bipp bira birb bird biri biro birr boab boad boai boar boba bobb bobi bobo boda bodb bodi bodo boi- boid boii boob bood boop boor bopa bopp bor- bora bord bori boro borr bpai bpda bprd brab brad brai brao brda brdo bria brid brio broa brob brod broo bror brrr d-bo daab daad daap daar daba dabb dabo dabp dada dadi dado daia daid daio dair dapa dapi dapp dara darb dard dari daro darp darr dbar dbpd dddd ddpo dia- diab diad diao diap diar diba dibb dibo dibp dida didi dido diii diop dior dipa dipo dipp dira dird dirr doab doap doar doba dobb dobi dod- doda dodd dodi dodo doid doob dood doop door dopa dopo dopp dopr dora dord dori doro dorp dorr dpaa dppa draa drab drad drap drar drba drda drib drip drob drod drop drra iaaa iaai iaap iaba iadb iaia iapa iapp iara ibad ibar ibdo ibia ibid ibra ibrd ibri ibro idad idar idda iddo idia idid idio idir idra idro iida iiii iiio iioi iioo iiop iipa iira ioba iobi iod- ioda iodd iodo ioii ioio iooi iooo iora iori ipad ipba ipdi ipid ipod ipop ippa ippo ippr ipri irad irai irao irap irar irbp irda irdo irdp iri- iria irid irio irip irob irod irop irpa irra irri oapi oara obad obai obba obbo obia obid oboi obor obra obri obro odai odbo odda oddd oddi odia odio odir odoo odop odor odra odrp oiba oido oiii oira ooaa ooba oobi ooda oodi ooia ooid oooo oora oord opap opar opia opii opio opo- opor oppa oppi oppo opra orab orad orai orao orar orba orbb orbi orbo orda ordo ori- oria orid orio oro- oror orpi orra orri orro paap paar paba pada padd padi pado paia paib paid paio paip pair papa papb papi papp papr par- para pard pari paro parp parr pbar pbpa pdpa pdpr piai piao pibb pibi pida pido piia piip piob pipa pipi pipo pipp pira piri piro pirr poad poar poba pobo pod- poda podd podi podo poia poid poio pood poop poor pop- popa popi popo popp pora porb pori poro porr ppad ppap ppar ppib ppid ppoa ppod pppa pppd pppo pppp prad prai prao prar pri- pria prid prii pro- proa prob prod proo prop prpd prrd prri raab raad raba rabb rabi rabo rada radd rado radr raia raid raii raip rair raob raop rapa rapd rapi rapp rara rarb rari raro rbbb rbbr rdap rdbp rdio