-al -ol a-a a-b a-i aaa aab aad aaf aai aal aan aao aar ab- aba abb abd abf abi abl abn abo abr ad- ada adb add adf adi adl adn ado adr af- afa afb afd aff afi afl afn afo afr ai- aia aib aid aif aii ail ain aio air al- ala alb ald alf ali all aln alo alr an- ana anb and anf ani anl ann ano anr aoa aob aod aof aoi aol aon aoo aor ar- ara arb ard arf ari arl arn aro arr baa bab bad baf bai bal ban bao bar bba bbb bbd bbf bbi bbl bbn bbo bbr bda bdb bdd bdf bdi bdl bdo bdr bfa bfb bfd bff bfi bfl bfn bfo bfr bi- bia bib bid bif bii bil bin bio bir bla blb bld blf bli bll bln blo blr bna bnb bnd bnf bni bnl bnn bno bnr boa bob bod bof boi bol bon boo bor bra brb brd brf bri brl brn bro brr daa dab dad daf dai dal dan dao dar dba dbb dbd dbf dbi dbl dbn dbo dbr dda ddb ddd ddf ddi ddl ddn ddo ddr dfa dfb dfd dff dfi dfl dfn dfo dfr di- dia dib did dif dii dil din dio dir dl- dla dlb dld dlf dli dll dlo dlr dna dnb dnd dnf dni dnl dnn dno dnr doa dob dod dof doi dol don doo dor dra drb drd dri drl drn dro drr faa fab fad faf fai fal fan fao far fba fbb fbd fbf fbi fbl fbn fbo fbr fda fdb fdd fdf fdi fdl fdn fdo fdr ffa ffd fff ffi ffl ffn ffo ffr fia fib fid fif fii fil fin fir fla flb fld flf fli fll fln flo flr fna fnb fnd fnf fni fnl fnn fnr foa fob fof foi fol fon foo for fra frb frd frf fri frl frn fro frr i-d i-f ia- iaa iab iad iaf iai ial ian iao iar iba ibb ibd ibf ibi ibl ibn ibo ibr ida idb idd idf idi idl idn ido idr ifa ifb ifd iff ifi ifl ifn ifo ifr iia iib iid iif iii iil iin iio iir il- ila ilb ild ilf ili ill iln ilo ilr in- ina inb ind inf ini inl inn ino inr io- ioa iob iod iof ioi iol ion ioo ior ir- ira irb ird irf iri irl irn iro irr la- laa lab lad laf lai lal lan lao lar lba lbb lbd lbf lbi lbl lbo lbr lda ldb ldd ldf ldi ldl ldn ldo ldr lfa lfb lfd lff lfi lfl lfn lfo lfr lia lib lid lif lii lil lin lio lir lla llb lld llf lli lll lln llo llr lna lnb lnd lni lnl lnn lno lnr loa lob lod lof loi lol lon loo lor lra lrb lrd lrf lri lrn lro lrr n-i naa nab nad naf nai nal nan nao nar nba nbb nbd nbf nbi nbl nbn nbo nbr nda ndb ndd ndf ndi ndl ndn ndo ndr nfa nfb nfd nff nfi nfl nfn nfo nfr nia nib nid nif nii nil nin nio nir nla nlb nld nlf nli nll nln nlo nlr nna nnb nnf nni nnl nnn nno no- noa nob nod nof noi nol non noo nor nra nrb nrd nrf nri nrl nrn nro nrr o-i oaa oab oad oaf oai oal oan oao oar ob- oba obb obd obf obi obl obn obo obr oda odb odd odf odi odl odn odo odr of- ofa ofb ofd off ofi ofl ofn ofo ofr oia oib oid oif oii oil oin oio oir ola olb old olf oli oll oln olo on- ona onb ond onf oni onl onn ono onr oo- ooa oob ood oof ooi ool oon ooo oor or- ora orb ord orf ori orl orn oro orr ra- raa rab rad raf rai ral ran rao rar rba rbb rbd rbf rbi rbl rbn rbo rbr rda rdb rdd rdf rdi rdl rdn rdo rdr rfa rfb rfd rff rfi rfl rfn rfo rfr ria rib rid rif rii ril rin rio rir rla rld rlf rli rll rln rlo rlr rna rnb rnd rni rnn rno rnr roa rob rod rof roi rol ron roo ror rra rrb rrd rrf rri rrl rrn rrr