-er bbb bbe bbi bbm bbo bbr bbt be- beb bee bei bem beo ber bet bev bi- bib bie bii bim bio bir bit biv bmb bme bmi bmm bmo bmr bmt bmv bob boe boi bom boo bor bot bov brb bre bri brm bro brr brt brv btb bte bti btm bto btr btt btv bvb bve bvi bvm bvo bvr bvt bvv ebb ebe ebi ebm ebo ebr ebt ebv eeb eee eem eeo eer eet eev eib eie eii eim eio eir eit eiv em- emb eme emi emm emo emr emt emv eo- eob eoe eoi eom eoo eor eot erb ere eri erm ero err ert erv etb ete eti etm eto etr ett etv evb eve evi evm evo evr evt evv i-v ibb ibe ibi ibm ibo ibr ibt ibv ie- iee iei iem ier iet iev iib iie iii iim iio iir iit im- imb ime imi imm imo imt imv io- iob ioe ioi iom ioo ior iot iov ir- irb ire iri irm iro irr irt irv itb ite iti itm ito itt itv ivb ive ivi ivo ivr ivt ivv m-o m-r m-v mbb mbe mbi mbm mbo mbr mbt mbv meb mee mei mem meo mer met mev mi- mib mie mii mim mio mir mit miv mmb mme mmi mmm mmo mmr mmt mmv mob moe moi mom moo mor mot mov mrb mre mri mrm mro mrr mrt mrv mtb mte mti mtm mto mtr mtt mtv mvb mve mvi mvm mvo mvr mvt mvv o-i ob- obb obe obi obm obo obr obt obv oeb oee oei oem oeo oer oet oib oie oii oim oio oir oit oiv om- omb ome omi omm omo omr omt omv oo- oob ooi oom ooo oor oot oov or- orb ore ori orm oro orr ort orv ot- otb ote oti otm oto otr ott otv ov- ovb ove ovi ovo ovv rbb rbe rbi rbm rbo rbr rbt re- reb ree rei rem reo rer ret rev rib rie rii rim rio rir rit riv rmb rme rmi rmm rmo rmr rmt rmv rob roe roi rom roo ror rot rov rrb rri rrm rrr rrt rtb rte rti rtm rto rtr rtt rtv rvb rve rvi rvm rvo rvr rvt rvv tbb tbe tbi tbm tbo tbr tbt tbv te- teb tee tei tem teo ter tet tev tib tie tii tim tio tir tit tiv tmb tme tmi tmm tmo tmr tmt tmv to- tob toe toi tom too tor tot tov trb tre tri trm tro trr trt trv ttb tte tti ttm tto ttr ttt ttv tvb tve tvi tvm tvo tvr tvt v-e vbi vbm vbo vbr vbv veb vee vei vem veo ver vet vi- vib vie vii vim vio vir vit viv vm- vmi vmm vmo vmr vmt vob voe voi vom voo vor vot vov vrb vre vri vrm vrr vrt vtb vte vti vtm vto vtr vtt vtv vvb vvi vvm vvo vvr vvt vvv