-er a-a a-b a-i aaa aab aad aae aai aan aar aau aav ab- aba abb abd abe abi abn abr abu abv ad- ada adb add ade adi adn adr adu adv aea aeb aed aee aei aen aer aeu aev ai- aia aib aid aie aii ain air aiu aiv an- ana anb and ane ani ann anr anu anv ar- ara arb ard are ari arn arr aru arv au- aua aub aud aue aui aun aur auv av- ava avb avd ave avi avn avr avu b-u baa bab bad bae bai ban bar bau bav bba bbb bbd bbe bbi bbn bbr bbu bda bdb bdd bde bdi bdr bdu bdv be- bea beb bed bee bei ben ber beu bev bi- bia bib bid bie bii bin bir biu biv bna bnb bnd bne bni bnn bnr bnu bnv bra brb brd bre bri brn brr bru brv bua bub bud bue bui bun bur buu bva bvb bvd bve bvi bvn bvr bvu bvv daa dab dad dae dai dan dar dau dav dba dbb dbd dbe dbi dbn dbr dbu dbv dda ddb ddd dde ddi ddn ddr ddu de- dea deb ded dee dei den der deu dev di- dia dib did die dii din dir diu div dna dnb dnd dne dni dnn dnr dra drb drd dre dri drn drr dru drv dua dub dud due dui dun dur duv dva dvb dvd dve dvi dvn dvr dvu eaa eab ead eae eai ean ear eau eav eba ebb ebd ebe ebi ebn ebr ebu ebv ed- eda edb edd ede edi edn edr edu eea eeb eed eee een eer eev eia eib eid eie eii ein eir eiu eiv en- ena enb end ene eni enn enr enu env era erb erd ere eri ern err eru erv eu- eua eub eud eue eui eun eur euv eva evb evd eve evi evn evr evv i-d i-v ia- iaa iab iad iae iai ian iar iau iav iba ibb ibd ibe ibi ibn ibr ibu ibv ida idb idd ide idi idn idr idu idv ie- iea ied iee iei ien ier iev iia iib iid iie iii iin iir iiu in- ina inb ind ine ini inn inr inu inv ir- ira irb ird ire iri irn irr iru irv iu- iua iub iud iue iui iur iva ivb ivd ive ivi ivr ivu ivv n-i naa nab nad nae nai nan nar nau nav nba nbb nbd nbe nbi nbn nbr nbu nbv nda ndb ndd nde ndi ndn ndr ndu ndv ne- nea neb ned nee nei nen ner neu nev nia nib nid nie nii nin nir niu niv nna nnb nne nni nnn nnu nnv nra nrb nrd nre nri nrn nrr nru nrv nua nub nud nue nui nun nur nuu nuv nva nvb nvd nve nvi nvn nvu nvv ra- raa rab rad rae rai ran rar rau rav rba rbb rbd rbe rbi rbn rbr rbu rda rdb rdd rde rdi rdn rdr rdu rdv re- rea reb red ree rei ren rer reu rev ria rib rid rie rii rin rir riv rna rnb rnd rni rnn rnr rnu rnv rra rrb rrd rri rrn rrr rru rua rub rud rue rui run rur ruu ruv rva rvb rvd rve rvi rvn rvr rvu rvv ua- uaa uab uad uae uai uan uar uau uav uba ubb ube ubi ubn ubr ubu ubv uda udb udd ude udi udn udr udu udv uea ueb ued uee uei uen uer uia uib uid uie uii uin uir uiu un- una unb und une uni unn unr unu unv ur- ura urb urd ure uri urn urr uru uua uue uun uur uuu uva uvb uve uvu uvv v-a v-e vaa vab vad vae vai van var vau vav vba vbd vbi vbr vbv vdb vdd vde vdi vdr vdu vdv vea veb ved vee vei ven ver veu vi- via vib vid vie vii vin vir viu viv vn- vna vnd vni vnr vnu vnv vra vrb vrd vre vri vrn vrr vru vue vur vuv vva vvb vvi vvr vvv