a-a a-b aaa aab aad aam aao aar aas aav ab- aba abb abd abm abo abr abs abv ad- ada adb add adm ado adr ads adv ama amb amd amm amo amr ams amv aoa aob aod aom aoo aor aos aov ar- ara arb ard arm aro arr ars arv as- asa asb asd asm aso asr ass asv av- ava avb avd avm avo avr avs baa bab bad bam bao bar bas bav bba bbb bbd bbm bbo bbr bbs bda bdb bdd bdm bdo bdr bds bdv bma bmb bmd bmm bmo bmr bms bmv boa bob bod bom boo bor bos bov bra brb brd brm bro brr brs brv bsa bsb bsd bsm bso bsr bss bsv bva bvb bvd bvm bvo bvr bvs bvv daa dab dad dam dao dar das dav dba dbb dbd dbm dbo dbr dbs dbv dda ddb ddd ddm ddo ddr dds dma dmb dmd dmm dmo dmr dms dmv doa dob dod dom doo dor dos dov dra drb drd drm dro drr drs drv dsa dsb dsd dsm dso dsr dss dsv dva dvb dvd dvm dvr dvs m-o m-r m-v maa mab mad mam mao mar mas mav mba mbb mbd mbm mbo mbr mbs mbv mda mdb mdd mdm mdo mdr mds mdv mma mmb mmd mmm mmo mmr mms mmv moa mob mod mom moo mor mos mov mra mrb mrd mrm mro mrr mrs mrv msa msb msd msm mso msr mss msv mva mvb mvd mvm mvo mvr mvs mvv oaa oab oad oam oao oar oas oav ob- oba obb obd obm obo obr obs obv oda odb odd odm odo odr ods odv om- oma omb omd omm omo omr oms omv oo- ooa oob ood oom ooo oor oos oov or- ora orb ord orm oro orr ors orv os- osa osb osd osm oso osr oss osv ov- ova ovb ovd ovo ovs ovv ra- raa rab rad ram rao rar ras rav rba rbb rbd rbm rbo rbr rbs rda rdb rdd rdm rdo rdr rds rdv rma rmb rmd rmm rmo rmr rms rmv roa rob rod rom roo ror ros rov rra rrb rrd rrm rrr rrs rsa rsb rsd rsm rso rsr rss rsv rva rvb rvd rvm rvo rvr rvs rvv saa sab sad sam sao sar sas sav sba sbb sbd sbm sbo sbr sbs sbv sda sdb sdd sdm sdo sdr sds sdv sma smb smd smm smo smr sms smv soa sob sod som soo sor sos sov sr- sra srb srd srm sro srr srs srv ss- ssa ssb ssd ssm sso ssr sss ssv sva svb svd svm svo svr svs svv v-a vaa vab vad vam vao var vas vav vba vbd vbm vbo vbr vbs vbv vdb vdd vdm vdo vdr vds vdv vm- vma vmd vmm vmo vmr voa vob vod vom voo vor vos vov vra vrb vrd vrm vrr vrs vsa vsb vsd vsm vso vsr vss vsv vva vvb vvm vvo vvr vvs vvv