a-a a-b a-i a-t aaa aab aad aai aan aar aat aau ab- aba abb abd abi abn abr abt abu ad- ada adb add adi adn adr adt adu ai- aia aib aid aii ain air ait aiu an- ana anb and ani ann anr ant anu ar- ara arb ard ari arn arr art aru at- ata atb atd ati atn atr att atu au- aua aub aud aui aun aur aut b-u baa bab bad bai ban bar bat bau bba bbb bbd bbi bbn bbr bbt bbu bda bdb bdd bdi bdr bdt bdu bi- bia bib bid bii bin bir bit biu bna bnb bnd bni bnn bnr bnt bnu bra brb brd bri brn brr brt bru bta btb btd bti btn btr btt btu bua bub bud bui bun bur but buu daa dab dad dai dan dar dat dau dba dbb dbd dbi dbn dbr dbt dbu dda ddb ddd ddi ddn ddr ddt ddu di- dia dib did dii din dir dit diu dna dnb dnd dni dnn dnr dnt dra drb drd dri drn drr drt dru dta dtb dtd dti dtn dtr dtt dtu dua dub dud dui dun dur dut i-d ia- iaa iab iad iai ian iar iat iau iba ibb ibd ibi ibn ibr ibt ibu ida idb idd idi idn idr idt idu iia iib iid iii iin iir iit iiu in- ina inb ind ini inn inr int inu ir- ira irb ird iri irn irr irt iru ita itb itd iti itn itt itu iu- iua iub iud iui iur iut n-i naa nab nad nai nan nar nat nau nba nbb nbd nbi nbn nbr nbt nbu nda ndb ndd ndi ndn ndr ndt ndu nia nib nid nii nin nir nit niu nna nnb nni nnn nnt nnu nra nrb nrd nri nrn nrr nrt nru nta ntb ntd nti ntn ntr ntt ntu nua nub nud nui nun nur nut nuu ra- raa rab rad rai ran rar rat rau rba rbb rbd rbi rbn rbr rbt rbu rda rdb rdd rdi rdn rdr rdt rdu ria rib rid rii rin rir rit rna rnb rnd rni rnn rnr rnt rnu rra rrb rrd rri rrn rrr rrt rru rta rtb rtd rti rtn rtr rtt rtu rua rub rud rui run rur rut ruu taa tab tad tai tan tar tat tau tba tbb tbd tbi tbn tbr tbt tbu tda tdb tdd tdi tdn tdr tdt tdu tia tib tid tii tin tir tit tiu tna tnb tnd tni tnn tnr tnt tra trb trd tri trn trr trt tru tta ttb ttd tti ttn ttr ttt ttu tua tub tud tui tun tur tut tuu ua- uaa uab uad uai uan uar uat uau uba ubb ubi ubn ubr ubt ubu uda udb udd udi udn udr udt udu uia uib uid uii uin uir uit uiu un- una unb und uni unn unr unt unu ur- ura urb urd uri urn urr urt uru uta utb utd uti utn utr utt utu uua uun uur uut uuu