-al -ol a-a a-b a-i aaa aab aad aaf aai aal aao aar aas ab- aba abb abd abf abi abl abo abr abs ad- ada adb add adf adi adl ado adr ads af- afa afb afd aff afi afl afo afr afs ai- aia aib aid aif aii ail aio air ais al- ala alb ald alf ali all alo alr als aoa aob aod aof aoi aol aoo aor aos ar- ara arb ard arf ari arl aro arr ars as- asa asb asd asf asi asl aso asr ass baa bab bad baf bai bal bao bar bas bba bbb bbd bbf bbi bbl bbo bbr bbs bda bdb bdd bdf bdi bdl bdo bdr bds bfa bfb bfd bff bfi bfl bfo bfr bfs bi- bia bib bid bif bii bil bio bir bis bla blb bld blf bli bll blo blr bls boa bob bod bof boi bol boo bor bos bra brb brd brf bri brl bro brr brs bsa bsb bsd bsf bsi bsl bso bsr bss daa dab dad daf dai dal dao dar das dba dbb dbd dbf dbi dbl dbo dbr dbs dda ddb ddd ddf ddi ddl ddo ddr dds dfa dfb dfd dff dfi dfl dfo dfr dfs di- dia dib did dif dii dil dio dir dis dl- dla dlb dld dlf dli dll dlo dlr dls doa dob dod dof doi dol doo dor dos dra drb drd dri drl dro drr drs dsa dsb dsd dsf dsi dsl dso dsr dss faa fab fad faf fai fal fao far fas fba fbb fbd fbf fbi fbl fbo fbr fbs fda fdb fdd fdf fdi fdl fdo fdr fds ffa ffd fff ffi ffl ffo ffr ffs fia fib fid fif fii fil fir fis fla flb fld flf fli fll flo flr fls foa fob fof foi fol foo for fos fra frb frd frf fri frl fro frr frs fsa fsb fsd fsf fsi fsl fso fsr fss i-d i-f ia- iaa iab iad iaf iai ial iao iar ias iba ibb ibd ibf ibi ibl ibo ibr ibs ida idb idd idf idi idl ido idr ids ifa ifb ifd iff ifi ifl ifo ifr ifs iia iib iid iif iii iil iio iir iis il- ila ilb ild ilf ili ill ilo ilr ils io- ioa iob iod iof ioi iol ioo ior ios ir- ira irb ird irf iri irl iro irr irs is- isa isb isd isf isi isl iso isr iss la- laa lab lad laf lai lal lao lar las lba lbb lbd lbf lbi lbl lbo lbr lbs lda ldb ldd ldf ldi ldl ldo ldr lds lfa lfb lfd lff lfi lfl lfo lfr lfs lia lib lid lif lii lil lio lir lis lla llb lld llf lli lll llo llr lls loa lob lod lof loi lol loo lor los lra lrb lrd lrf lri lro lrr lrs lsa lsb lsd lsf lsi lsl lso lsr lss o-i oaa oab oad oaf oai oal oao oar oas ob- oba obb obd obf obi obl obo obr obs oda odb odd odf odi odl odo odr ods of- ofa ofb ofd off ofi ofl ofo ofr ofs oia oib oid oif oii oil oio oir ois ola olb old olf oli oll olo ols oo- ooa oob ood oof ooi ool ooo oor oos or- ora orb ord orf ori orl oro orr ors os- osa osb osd osf osi osl oso osr oss ra- raa rab rad raf rai ral rao rar ras rba rbb rbd rbf rbi rbl rbo rbr rbs rda rdb rdd rdf rdi rdl rdo rdr rds rfa rfb rfd rff rfi rfl rfo rfr rfs ria rib rid rif rii ril rio rir ris rla rld rlf rli rll rlo rlr rls roa rob rod rof roi rol roo ror ros rra rrb rrd rrf rri rrl rrr rrs rsa rsb rsd rsf rsi rsl rso rsr rss saa sab sad saf sai sal sao sar sas sba sbb sbd sbf sbi sbl sbo sbr sbs sda sdb sdd sdf sdi sdl sdo sdr sds sfa sfb sfd sff sfi sfl sfo sfr sfs sia sib sid sif sii sil sio sir sis sla slb sld slf sli sll slo slr sls soa sob sod sof soi sol soo sor sos sr- sra srb srd srf sri srl sro srr srs ss- ssa ssb ssd ssf ssi ssl sso ssr sss

a-do a-ii aaaa aaab aaad aaaf aaai aaal aaar aaas aaba aabb aabd aabi aabl aada aadi aads aafa aafb aafd aaff aafi aafl aaib aaii aais aala aald aali aall aalo aals aaoo aara aard aari aaro aars aasa aasd aasf aasi aass abaa abab abad abaf abai abal abar abas abb- abba abbb abbi abbo abbr abbs abda abdi abdo abff abia abib abid abil abir abis abla ablo abls aboa abob abod abof abol aboo abor abos abra abri abro abrs abs- absa absd absf absi absl abss adaa adab adad adai adal adao adar adas adba adbi adda addd addi addl addo addr adds adfa adfl adfs adia adib adif adio adir adis adli adls adob adod adoo ador ados adra adro adrs adsa adsi adsl adso adsr adss afaa afad afao afar afbs afdb afdl affa affi affo affs afia afib afid afif afil afir afis afla afoa afol afoo afor afr- afra afri afro afrs afsa afsb aiai aias aiba aibl aibo aida aidb aidi aidr aids aifd aiff aifl aifs aiia aiib aiid aiir aila aild aili ails aioi aira aird airi airo airs aisa aisb aisd aisi aisl aiso aisr alaa alad alai alal alao alar alas alb- alba albi albo albs ald- alda aldi aldl aldo alds alfa alfi alfs ali- alia alib alid alif alii alil alio alir alis all- alla alli alll allo allr alls aloa alod alof aloi alol aloo alor alos alro alsa also