a-a a-b a-t aaa aab aam aao aat aau aav ab- aba abb abm abo abt abu abv ama amb amm amo amt amu amv aoa aob aom aoo aot aou aov at- ata atb atm ato att atu atv au- aua aub aum auo aut auv av- ava avb avm avo avt avu b-u baa bab bam bao bat bau bav bba bbb bbm bbo bbt bbu bma bmb bmm bmo bmt bmu bmv boa bob bom boo bot bou bov bta btb btm bto btt btu btv bua bub bum buo but buu bva bvb bvm bvo bvt bvu bvv m-o m-v maa mab mam mao mat mau mav mba mbb mbm mbo mbt mbu mbv mma mmb mmm mmo mmt mmu mmv moa mob mom moo mot mou mov mta mtb mtm mto mtt mtu mtv mua mub mum mut muu mva mvb mvm mvo mvt mvv oaa oab oam oao oat oau oav ob- oba obb obm obo obt obu obv om- oma omb omm omo omt omu omv oo- ooa oob oom ooo oot oov ot- ota otb otm oto ott otu otv ou- oua oum ouo out ov- ova ovb ovo ovv taa tab tam tao tat tau tav tba tbb tbm tbo tbt tbu tbv tma tmb tmm tmo tmt tmu tmv to- toa tob tom too tot tou tov tta ttb ttm tto ttt ttu ttv tua tub tum tuo tut tuu tuv tva tvb tvm tvo tvt tvu ua- uaa uab uam uao uat uau uav uba ubb ubo ubt ubu ubv um- uma umb umm umo umt umu uoa uob uom uoo uot uta utb utm uto utt utu utv uua uum uut uuu uva uvb uvm uvo uvu uvv v-a vaa vab vam vao vat vau vav vba vbm vbo vbv vm- vma vmm vmo vmt vmu voa vob vom voo vot vou vov vta vtb vtm vto vtt vtu vtv vum vut vuv vva vvb vvm vvo vvt vvv