a-a a-b a-i aaa aab aad aai aak aan aao aar aau aav ab- aba abb abd abi abk abn abo abr abu abv ad- ada adb add adi adk adn ado adr adu adv ai- aia aib aid aii aik ain aio air aiu aiv aka akb akd aki akk akn ako akr aku akv an- ana anb and ani ank ann ano anr anu anv aoa aob aod aoi aok aon aoo aor aou aov ar- ara arb ard ari ark arn aro arr aru arv au- aua aub aud aui auk aun auo aur auv av- ava avb avd avi avk avn avo avr avu b-u baa bab bad bai bak ban bao bar bau bav bba bbb bbd bbi bbk bbn bbo bbr bbu bda bdb bdd bdi bdk bdo bdr bdu bdv bi- bia bib bid bii bik bin bio bir biu biv bka bkb bkk bkn bko bkr bkv bna bnb bnd bni bnk bnn bno bnr bnu bnv boa bob bod boi bok bon boo bor bou bov bra brb brd bri brk brn bro brr bru brv bua bub bud bui buk bun buo bur buu bva bvb bvd bvi bvk bvn bvo bvr bvu bvv daa dab dad dai dak dan dao dar dau dav dba dbb dbd dbi dbk dbn dbo dbr dbu dbv dda ddb ddd ddi ddk ddn ddo ddr ddu di- dia dib did dii dik din dio dir diu div dka dkb dki dkk dko dkr dku dna dnb dnd dni dnk dnn dno dnr doa dob dod doi dok don doo dor dou dov dra drb drd dri drk drn dro drr dru drv dua dub dud dui duk dun duo dur duv dva dvb dvd dvi dvk dvn dvr dvu i-d i-v ia- iaa iab iad iai ian iao iar iau iav iba ibb ibd ibi ibk ibn ibo ibr ibu ibv ida idb idd idi idk idn ido idr idu idv iia iib iid iii iin iio iir iiu ika ikb iki ikk iko ikr iku ikv in- ina inb ind ini ink inn ino inr inu inv io- ioa iob iod ioi ion ioo ior iou iov ir- ira irb ird iri irk irn iro irr iru irv iu- iua iub iud iui iur iva ivb ivd ivi ivo ivr ivu ivv ka- kaa kab kad kai kak kan kao kar kau kav kba kbb kbd kbi kbk kbn kbo kbr kbu kda kdb kdk kdo kdr kdu kia kib kid kii kik kin kio kir kiu kiv kkb kki kkk kkn kkr kku kkv kn- kna knd kni knk knn kno knr knu koa kob kod koi kok kon koo kor kou kra krd kri krk krn kro krr kru krv kub kud kui kuk kun kur kuu kva kvb kvi kvk kvn kvo kvr kvv n-i naa nab nad nai nak nan nao nar nau nav nba nbb nbd nbi nbk nbn nbo nbr nbu nbv nda ndb ndd ndi ndk ndn ndo ndr ndu ndv nia nib nid nii nik nin nio nir niu niv nka nki nkk nkn nko nkr nku nna nnb nni nnk nnn nno nnu nnv no- noa nob nod noi nok non noo nor nou nov nra nrb nrd nri nrk nrn nro nrr nru nrv nua nub nud nui nuk nun nuo nur nuu nuv nva nvb nvd nvi nvk nvn nvu nvv o-i oaa oab oad oai oak oan oao oar oau oav ob- oba obb obd obi obk obn obo obr obu obv oda odb odd odi odn odo odr odu odv oia oib oid oii oik oin oio oir oiu oiv oka okb okd oki okk oko okr oku on- ona onb ond oni onk onn ono onr onu oo- ooa oob ood ooi ook oon ooo oor oov or- ora orb ord ori ork orn oro orr oru orv ou- oua oud oui ouk oun ouo our ov- ova ovb ovd ovi ovo ovv ra- raa rab rad rai rak ran rao rar rau rav rba rbb rbd rbi rbk rbn rbo rbr rbu rda rdb rdd rdi rdn rdo rdr rdu rdv ria rib rid rii rik rin rio rir riv rkb rkk rko rku rkv rna rnb rnd rni rnn rno rnr rnu rnv roa rob rod roi rok ron roo ror rou rov rra rrb rrd rri rrk rrn rrr rru rua rub rud rui ruk run ruo rur ruu ruv rva rvb rvd rvi rvn rvo rvr rvu rvv ua- uaa uab uad uai uak uan uao uar uau uav uba ubb ubi ubk ubn ubo ubr ubu ubv uda udb udd udi udk udn udo udr udu udv uia uib uid uii uin uio uir uiu uka ukb uki ukk ukn ukr uku un- una unb und uni unk unn uno unr unu unv uoa uob uod uok uon uoo uor ur- ura urb urd uri urk urn uro urr uru uua uun uur uuu uva uvb uvo uvu uvv v-a vaa vab vad vai vak van vao var vau vav vba vbd vbi vbk vbo vbr vbv vdb vdd vdi vdk vdo vdr vdu vdv vi- via vib vid vii vik vin vio vir viu viv vka vkb vn- vna vnd vni vno vnr vnu vnv voa vob vod voi vok von voo vor vou vov vra vrb vrd vri vrk vrn vrr vru vuk vur vuv vva vvb vvi vvo vvr vvv