-al -ol a-a a-b a-i a-t aaa aab aaf aai aal aao aar aas aat aau ab- aba abb abf abi abl abo abr abs abt abu af- afa afb aff afi afl afo afr afs aft afu ai- aia aib aif aii ail aio air ais ait aiu al- ala alb alf ali all alo alr als alt alu aoa aob aof aoi aol aoo aor aos aot aou ar- ara arb arf ari arl aro arr ars art aru as- asa asb asf asi asl aso asr ass ast asu at- ata atb atf ati atl ato atr ats att atu au- aua aub auf aui aul auo aur aus aut b-u baa bab baf bai bal bao bar bas bat bau bba bbb bbf bbi bbl bbo bbr bbs bbt bbu bfa bfb bff bfi bfl bfo bfr bfs bft bfu bi- bia bib bif bii bil bio bir bis bit biu bla blb blf bli bll blo blr bls blt blu boa bob bof boi bol boo bor bos bot bou bra brb brf bri brl bro brr brs brt bru bsa bsb bsf bsi bsl bso bsr bss bst bsu bta btb btf bti btl bto btr bts btt btu bua bub buf bui bul buo bur bus but buu faa fab faf fai fal fao far fas fat fau fba fbb fbf fbi fbl fbo fbr fbs fbt fbu ffa fff ffi ffl ffo ffr ffs fft ffu fia fib fif fii fil fir fis fit fiu fla flb flf fli fll flo flr fls flt flu foa fob fof foi fol foo for fos fot fou fra frb frf fri frl fro frr frs frt fru fsa fsb fsf fsi fsl fso fsr fss fst fsu fta ftb ftf fti ftl fto ftr fts ftt ftu fua fub fuf fui ful fuo fur fus fut fuu i-f ia- iaa iab iaf iai ial iao iar ias iat iau iba ibb ibf ibi ibl ibo ibr ibs ibt ibu ifa ifb iff ifi ifl ifo ifr ifs ift ifu iia iib iif iii iil iio iir iis iit iiu il- ila ilb ilf ili ill ilo ilr ils ilt ilu io- ioa iob iof ioi iol ioo ior ios iot iou ir- ira irb irf iri irl iro irr irs irt iru is- isa isb isf isi isl iso isr iss ist isu ita itb itf iti itl ito its itt itu iu- iua iub iui iur ius iut la- laa lab laf lai lal lao lar las lat lau lba lbb lbf lbi lbl lbo lbr lbs lbt lbu lfa lfb lff lfi lfl lfo lfr lfs lft lfu lia lib lif lii lil lio lir lis lit liu lla llb llf lli lll llo llr lls llt llu loa lob lof loi lol loo lor los lot lou lra lrb lrf lri lro lrr lrs lrt lru lsa lsb lsf lsi lsl lso lsr lss lst lsu lta ltb ltf lti ltl lto ltr lts ltt ltu lua lub luf lui lul luo lur lus lut luu o-i oaa oab oaf oai oal oao oar oas oat oau ob- oba obb obf obi obl obo obr obs obt obu of- ofa ofb off ofi ofl ofo ofr ofs oft ofu oia oib oif oii oil oio oir ois oit oiu ola olb olf oli oll olo ols olt olu oo- ooa oob oof ooi ool ooo oor oos oot or- ora orb orf ori orl oro orr ors ort oru os- osa osb osf osi osl oso osr oss ost osu ot- ota otb otf oti otl oto otr ots ott otu ou- oua ouf oui oul ouo our ous out ra- raa rab raf rai ral rao rar ras rat rau rba rbb rbf rbi rbl rbo rbr rbs rbt rbu rfa rfb rff rfi rfl rfo rfr rfs rft rfu ria rib rif rii ril rio rir ris rit rla rlf rli rll rlo rlr rls rlt rlu roa rob rof roi rol roo ror ros rot rou rra rrb rrf rri rrl rrr rrs rrt rru rsa rsb rsf rsi rsl rso rsr rss rst rsu rta rtb rtf rti rtl rto rtr rts rtt rtu rua rub ruf rui ruo rur rus rut ruu saa sab saf sai sal sao sar sas sat sau sba sbb sbf sbi sbl sbo sbr sbs sbt sbu sfa sfb sff sfi sfl sfo sfr sfs sft sfu sia sib sif sii sil sio sir sis sit siu sla slb slf sli sll slo slr sls slt slu soa sob sof soi sol soo sor sos sot sou sr- sra srb srf sri srl sro srr srs srt ss- ssa ssb ssf ssi ssl sso ssr sss sst ssu sta stb stf sti stl sto str sts stt stu sua sub suf sui sul suo sur sus sut suu taa tab taf tai tal tao tar tas tat tau tba tbb tbf tbi tbl tbo tbr tbs tbt tbu tfa tfb tff tfi tfl tfo tfr tfs tft tfu tia tib tif tii til tio tir tis tit tiu tla tlf tli tll tlo tlr tls tlt tlu to- toa tob tof toi tol too tor tos tot tou tra trb trf tri trl tro trr trs trt tru tsa tsb tsf tsi tsl tso tsr tss tst tsu tta ttb ttf tti ttl tto ttr tts ttt ttu tua tub tuf tui tul tuo tur tus tut tuu ua- uaa uab uaf uai ual uao uar uas uat uau uba ubb ubf ubi ubl ubo ubr ubs ubt ubu ufa uff ufi ufl ufo ufr ufs uft ufu uia uib uif uii uil uio uir uis uit uiu ula ulb ulf uli ull ulo ulr uls ult ulu uoa uob uol uoo uor uos uot ur- ura urb urf uri url uro urr urs urt uru usa usb usf usi usl uso usr uss ust usu uta utb utf uti utl