a-a a-b a-i a-t aaa aab aae aag aai aan aao aat aav ab- aba abb abe abg abi abn abo abt abv aea aeb aee aeg aei aen aeo aet aev ag- aga agb age agg agi agn ago agt agv ai- aia aib aie aig aii ain aio ait aiv an- ana anb ane ang ani ann ano ant anv aoa aob aoe aog aoi aon aoo aot aov at- ata atb ate atg ati atn ato att atv av- ava avb ave avg avi avn avo avt baa bab bae bag bai ban bao bat bav bba bbb bbe bbg bbi bbn bbo bbt be- bea beb bee beg bei ben beo bet bev bga bgb bge bgg bgi bgn bgo bgt bgv bi- bia bib bie big bii bin bio bit biv bna bnb bne bng bni bnn bno bnt bnv boa bob boe bog boi bon boo bot bov bta btb bte btg bti btn bto btt btv bva bvb bve bvg bvi bvn bvo bvt bvv eaa eab eae eag eai ean eao eat eav eba ebb ebe ebg ebi ebn ebo ebt ebv eea eeb eee eeg een eeo eet eev ega egb ege egg egi egn ego egt eia eib eie eig eii ein eio eit eiv en- ena enb ene eng eni enn eno ent env eo- eoa eob eoe eog eoi eon eoo eot eta etb ete etg eti etn eto ett etv eva evb eve evg evi evn evo evt evv gaa gab gae gag gai gan gao gat gav gba gbe gbg gbi gbn gbo gbt gbv ge- gea geb gee geg gei gen geo get gev gga ggb ggg ggi ggn ggo ggt ggv gia gib gie gig gii gin gio git giv gna gnb gne gni gnn gno gnt gnv goa gob goe gog goi gon goo got gov gta gtb gte gtg gti gtn gto gtt gtv gva gvb gve gvg gvi gvn gvo gvt i-v ia- iaa iab iae iag iai ian iao iat iav iba ibb ibe ibg ibi ibn ibo ibt ibv ie- iea iee ieg iei ien iet iev iga igb ige igg igi ign igo igt iia iib iie iii iin iio iit in- ina inb ine ing ini inn ino int inv io- ioa iob ioe iog ioi ion ioo iot iov ita itb ite itg iti itn ito itt itv iva ivb ive ivg ivi ivo ivt ivv n-i naa nab nae nag nai nan nao nat nav nba nbb nbe nbg nbi nbn nbo nbt nbv ne- nea neb nee neg nei nen neo net nev nga ngb nge ngg ngi ngn ngo ngt nia nib nie nig nii nin nio nit niv nna nnb nne nng nni nnn nno nnt nnv no- noa nob noe nog noi non noo not nov nta ntb nte ntg nti ntn nto ntt ntv nva nvb nve nvg nvi nvn nvt nvv o-i oaa oab oae oag oai oan oao oat oav ob- oba obb obe obg obi obn obo obt obv oea oeb oee oeg oei oen oeo oet oga oge ogg ogi ogn ogo ogt oia oib oie oii oin oio oit oiv on- ona onb one ong oni onn ono ont oo- ooa oob oog ooi oon ooo oot oov ot- ota otb ote otg oti otn oto ott otv ov- ova ovb ove ovi ovo ovv taa tab tae tag tai tan tao tat tav tba tbb tbe tbg tbi tbn tbo tbt tbv te- tea teb tee teg tei ten teo tet tev tga tgb tge tgg tgi tgn tgo tgt tgv tia tib tie tig tii tin tio tit tiv tna tnb tne tng tni tnn tno tnt to- toa tob toe tog toi ton too tot tov tta ttb tte ttg tti ttn tto ttt ttv tva tvb tve tvg tvi tvn tvo tvt v-a v-e vaa vab vae vag vai van vao vat vav vba vbg vbi vbo vbv vea veb vee veg vei ven veo vet vga vgg vgn vgo vgt vi- via vib vie vig vii vin vio vit viv vn- vna vng vni vno vnv voa vob voe vog voi von voo vot vov vta vtb vte vtg vti vto vtt vtv vva vvb vvg vvi vvo vvt vvv