-al -ol a-a a-b a-i aaa aab aaf aai aal aan aao aar aav ab- aba abb abf abi abl abn abo abr abv af- afa afb aff afi afl afn afo afr afv ai- aia aib aif aii ail ain aio air aiv al- ala alb alf ali all aln alo alr alv an- ana anb anf ani anl ann ano anr anv aoa aob aof aoi aol aon aoo aor aov ar- ara arb arf ari arl arn aro arr arv av- ava avb avf avi avl avn avo avr baa bab baf bai bal ban bao bar bav bba bbb bbf bbi bbl bbn bbo bbr bfa bfb bff bfi bfl bfn bfo bfr bfv bi- bia bib bif bii bil bin bio bir biv bla blb blf bli bll bln blo blr blv bna bnb bnf bni bnl bnn bno bnr bnv boa bob bof boi bol bon boo bor bov bra brb brf bri brl brn bro brr brv bva bvb bvi bvl bvn bvo bvr bvv faa fab faf fai fal fan fao far fav fba fbb fbf fbi fbl fbn fbo fbr ffa fff ffi ffl ffn ffo ffr ffv fia fib fif fii fil fin fir fla flb flf fli fll fln flo flr fna fnb fnf fni fnl fnn fnr fnv foa fob fof foi fol fon foo for fra frb frf fri frl frn fro frr fva i-f i-v ia- iaa iab iaf iai ial ian iao iar iav iba ibb ibf ibi ibl ibn ibo ibr ibv ifa ifb iff ifi ifl ifn ifo ifr iia iib iif iii iil iin iio iir il- ila ilb ilf ili ill iln ilo ilr ilv in- ina inb inf ini inl inn ino inr inv io- ioa iob iof ioi iol ion ioo ior iov ir- ira irb irf iri irl irn iro irr irv iva ivb ivf ivi ivl ivo ivr ivv la- laa lab laf lai lal lan lao lar lav lba lbb lbf lbi lbl lbo lbr lbv lfa lfb lff lfi lfl lfn lfo lfr lia lib lif lii lil lin lio lir liv lla llb llf lli lll lln llo llr llv lna lnb lni lnl lnn lno lnr loa lob lof loi lol lon loo lor lov lra lrb lrf lri lrn lro lrr lrv lva lvb lvf lvi lvl lvn lvr lvv n-i naa nab naf nai nal nan nao nar nav nba nbb nbf nbi nbl nbn nbo nbr nbv nfa nfb nff nfi nfl nfn nfo nfr nfv nia nib nif nii nil nin nio nir niv nla nlb nlf nli nll nln nlo nlr nlv nna nnb nnf nni nnl nnn nno nnv no- noa nob nof noi nol non noo nor nov nra nrb nrf nri nrl nrn nro nrr nrv nva nvb nvi nvl nvn nvv o-i oaa oab oaf oai oal oan oao oar oav ob- oba obb obf obi obl obn obo obr obv of- ofa ofb off ofi ofl ofn ofo ofr ofv oia oib oif oii oil oin oio oir oiv ola olb olf oli oll oln olo on- ona onb onf oni onl onn ono onr oo- ooa oob oof ooi ool oon ooo oor oov or- ora orb orf ori orl orn oro orr orv ov- ova ovb ovf ovi ovl ovo ovv ra- raa rab raf rai ral ran rao rar rav rba rbb rbf rbi rbl rbn rbo rbr rfa rfb rff rfi rfl rfn rfo rfr rfv ria rib rif rii ril rin rio rir riv rla rlf rli rll rln rlo rlr rna rnb rni rnn rno rnr rnv roa rob rof roi rol ron roo ror rov rra rrb rrf rri rrl rrn rrr rva rvb rvf rvi rvl rvn rvo rvr rvv v-a vaa vab vai val van vao var vav vba vbi vbl vbo vbr vbv vfa vfb vff vfi vfl vfn vfr vfv vi- via vib vif vii vil vin vio vir viv vl- vla vlb vlf vll vlo vlv vn- vna vnf vni vnl vno vnr vnv voa vob vof voi vol von voo vor vov vra vrb vrf vri vrn vrr vva vvb vvi vvo vvr vvv