a-a a-b a-i aaa aab aag aai aan aao aar aav ab- aba abb abg abi abn abo abr abv ag- aga agb agg agi agn ago agr agv ai- aia aib aig aii ain aio air aiv an- ana anb ang ani ann ano anr anv aoa aob aog aoi aon aoo aor aov ar- ara arb arg ari arn aro arr arv av- ava avb avg avi avn avo avr baa bab bag bai ban bao bar bav bba bbb bbg bbi bbn bbo bbr bga bgb bgg bgi bgn bgo bgr bgv bi- bia bib big bii bin bio bir biv bna bnb bng bni bnn bno bnr bnv boa bob bog boi bon boo bor bov bra brb brg bri brn bro brr brv bva bvb bvg bvi bvn bvo bvr bvv gaa gab gag gai gan gao gar gav gba gbg gbi gbn gbo gbr gbv gga ggb ggg ggi ggn ggo ggr ggv gia gib gig gii gin gio gir giv gna gnb gni gnn gno gnr gnv goa gob gog goi gon goo gor gov gra grb grg gri grn gro grr grv gva gvb gvg gvi gvn gvo gvr i-v ia- iaa iab iag iai ian iao iar iav iba ibb ibg ibi ibn ibo ibr ibv iga igb igg igi ign igo igr iia iib iii iin iio iir in- ina inb ing ini inn ino inr inv io- ioa iob iog ioi ion ioo ior iov ir- ira irb irg iri irn iro irr irv iva ivb ivg ivi ivo ivr ivv n-i naa nab nag nai nan nao nar nav nba nbb nbg nbi nbn nbo nbr nbv nga ngb ngg ngi ngn ngo nia nib nig nii nin nio nir niv nna nnb nng nni nnn nno nnv no- noa nob nog noi non noo nor nov nra nrb nrg nri nrn nro nrr nrv nva nvb nvg nvi nvn nvv o-i oaa oab oag oai oan oao oar oav ob- oba obb obg obi obn obo obr obv oga ogg ogi ogn ogo oia oib oii oin oio oir oiv on- ona onb ong oni onn ono onr oo- ooa oob oog ooi oon ooo oor oov or- ora orb org ori orn oro orr orv ov- ova ovb ovi ovo ovv ra- raa rab rag rai ran rao rar rav rba rbb rbg rbi rbn rbo rbr rga rgb rgg rgi rgn rgo rgr rgv ria rib rig rii rin rio rir riv rna rnb rng rni rnn rno rnr rnv roa rob rog roi ron roo ror rov rra rrb rrg rri rrn rrr rva rvb rvg rvi rvn rvo rvr rvv v-a vaa vab vag vai van vao var vav vba vbg vbi vbo vbr vbv vga vgg vgn vgo vgr vi- via vib vig vii vin vio vir viv vn- vna vng vni vno vnr vnv voa vob vog voi von voo vor vov vra vrb vrg vri vrn vrr vva vvb vvg vvi vvo vvr vvv