-al -ol a-a a-b a-i a-t aaa aab aaf aag aai aal aan aao aar aat ab- aba abb abf abg abi abl abn abo abr abt af- afa afb aff afg afi afl afn afo afr aft ag- aga agb agf agg agi agl agn ago agr agt ai- aia aib aif aig aii ail ain aio air ait al- ala alb alf alg ali all aln alo alr alt an- ana anb anf ang ani anl ann ano anr ant aoa aob aof aog aoi aol aon aoo aor aot ar- ara arb arf arg ari arl arn aro arr art at- ata atb atf atg ati atl atn ato atr att baa bab baf bag bai bal ban bao bar bat bba bbb bbf bbg bbi bbl bbn bbo bbr bbt bfa bfb bff bfg bfi bfl bfn bfo bfr bft bga bgb bgf bgg bgi bgl bgn bgo bgr bgt bi- bia bib bif big bii bil bin bio bir bit bla blb blf blg bli bll bln blo blr blt bna bnb bnf bng bni bnl bnn bno bnr bnt boa bob bof bog boi bol bon boo bor bot bra brb brf brg bri brl brn bro brr brt bta btb btf btg bti btl btn bto btr btt faa fab faf fag fai fal fan fao far fat fba fbb fbf fbg fbi fbl fbn fbo fbr fbt ffa fff ffg ffi ffl ffn ffo ffr fft fga fgb fgf fgg fgi fgl fgn fgr fgt fia fib fif fig fii fil fin fir fit fla flb flf flg fli fll fln flo flr flt fna fnb fnf fng fni fnl fnn fnr fnt foa fob fof fog foi fol fon foo for fot fra frb frf frg fri frl frn fro frr frt fta ftb ftf ftg fti ftl ftn fto ftr ftt gaa gab gaf gag gai gal gan gao gar gat gba gbf gbg gbi gbl gbn gbo gbr gbt gfa gfb gff gfi gfl gfo gfr gft gga ggb ggg ggi ggn ggo ggr ggt gia gib gif gig gii gil gin gio gir git gla glb glf glg gli gll gln glo glr glt gna gnb gnf gni gnl gnn gno gnr gnt goa gob gof gog goi gol gon goo gor got gra grb grf grg gri grl grn gro grr grt gta gtb gtf gtg gti gtl gtn gto gtr gtt i-f ia- iaa iab iaf iag iai ial ian iao iar iat iba ibb ibf ibg ibi ibl ibn ibo ibr ibt ifa ifb iff ifg ifi ifl ifn ifo ifr ift iga igb igf igg igi igl ign igo igr igt iia iib iif iii iil iin iio iir iit il- ila ilb ilf ilg ili ill iln ilo ilr ilt in- ina inb inf ing ini inl inn ino inr int io- ioa iob iof iog ioi iol ion ioo ior iot ir- ira irb irf irg iri irl irn iro irr irt ita itb itf itg iti itl itn ito itt la- laa lab laf lag lai lal lan lao lar lat lba lbb lbf lbg lbi lbl lbo lbr lbt lfa lfb lff lfg lfi lfl lfn lfo lfr lft lga lgb lgf lgg lgi lgl lgn lgo lgr lgt lia lib lif lig lii lil lin lio lir lit lla llb llf llg lli lll lln llo llr llt lna lnb lng lni lnl lnn lno lnr lnt loa lob lof log loi lol lon loo lor lot lra lrb lrf lrg lri lrn lro lrr lrt lta ltb ltf ltg lti ltl lto ltr ltt n-i naa nab naf nag nai nal nan nao nar nat nba nbb nbf nbg nbi nbl nbn nbo nbr nbt nfa nfb nff nfi nfl nfn nfo nfr nft nga ngb ngf ngg ngi ngl ngn ngo ngt nia nib nif nig nii nil nin nio nir nit nla nlb nlf nlg nli nll nln nlo nlr nlt nna nnb nnf nng nni nnl nnn nno nnt no- noa nob nof nog noi nol non noo nor not nra nrb nrf nrg nri nrl nrn nro nrr nrt nta ntb ntf ntg nti ntn nto ntr ntt o-i oaa oab oaf oag oai oal oan oao oar oat ob- oba obb obf obg obi obl obn obo obr obt of- ofa ofb off ofg ofi ofl ofn ofo ofr oft oga ogf ogg ogi ogl ogn ogo ogt oia oib oif oii oil oin oio oir oit ola olb olf olg oli oll oln olo olt on- ona onb onf ong oni onl onn ono onr ont oo- ooa oob oof oog ooi ool oon ooo oor oot or- ora orb orf org ori orl orn oro orr ort ot- ota otb otf otg oti otl otn oto otr ott ra- raa rab raf rag rai ral ran rao rar rat rba rbb rbf rbg rbi rbl rbn rbo rbr rbt rfa rfb rff rfg rfi rfl rfn rfo rfr rft rga rgb rgf rgg rgi rgn rgo rgr rgt ria rib rif rig rii ril rin rio rir rit rla rlf rlg rli rll rln rlo rlr rlt rna rnb rng rni rnn rno rnr rnt roa rob rof rog roi rol ron roo ror rot rra rrb rrf rrg rri rrl rrn rrr rrt rta rtb rtf rtg rti rtl rtn rto rtr rtt taa tab taf tag tai tal tan tao tar tat tba tbb tbf tbg tbi tbl tbn tbo tbr tbt tfa tfb tff tfg tfi tfl tfn tfo tfr tft tga tgb tgf tgg tgi tgl tgn tgo tgr tgt tia tib tif tig tii til tin tio tir tit tla tlf tlg tli tll tln tlo tlr tlt tna tnb tnf tng tni tnl tnn tno tnr tnt to- toa tob tof tog toi tol ton too tor tot tra trb trf trg tri trl trn tro trr trt tta ttb ttf ttg tti ttl ttn