-er -up b-p b-u bbb bbe bbi bbm bbo bbp bbr bbu be- beb bee bei bem beo bep ber beu bev bi- bib bie bii bim bio bip bir biu biv bmb bme bmi bmm bmo bmp bmr bmu bmv bob boe boi bom boo bop bor bou bov bpb bpe bpi bpm bpo bpp bpr bpu bpv brb bre bri brm bro brp brr bru brv bub bue bui bum buo bup bur buu bvb bve bvi bvm bvo bvp bvr bvu bvv ebb ebe ebi ebm ebo ebp ebr ebu ebv eeb eee eem eeo eep eer eev eib eie eii eim eio eip eir eiu eiv em- emb eme emi emm emo emp emr emu emv eo- eob eoe eoi eom eoo eop eor eou ep- epb epe epi epm epo epp epr epu erb ere eri erm ero erp err eru erv eu- eub eue eui eup eur euv evb eve evi evm evo evp evr evv i-v ibb ibe ibi ibm ibo ibp ibr ibu ibv ie- iee iei iem iep ier iev iib iie iii iim iio iip iir iiu im- imb ime imi imm imo imp imu imv io- iob ioe ioi iom ioo iop ior iou iov ipb ipe ipi ipm ipo ipp ipr ipu ipv ir- irb ire iri irm iro irp irr iru irv iu- iub iue iui ium iup iur ivb ive ivi ivo ivp ivr ivu ivv m-o m-r m-v mbb mbe mbi mbm mbo mbp mbr mbu mbv meb mee mei mem meo mep mer meu mev mi- mib mie mii mim mio mip mir miu miv mmb mme mmi mmm mmo mmp mmr mmu mmv mob moe moi mom moo mop mor mou mov mpb mpe mpi mpm mpo mpp mpr mpu mpv mrb mre mri mrm mro mrp mrr mru mrv mub mue mui mum mup mur muu mvb mve mvi mvm mvo mvp mvr mvv o-i ob- obb obe obi obm obo obp obr obu obv oeb oee oei oem oeo oep oer oib oie oii oim oio oip oir oiu oiv om- omb ome omi omm omo omp omr omu omv oo- oob ooi oom ooo oop oor oov op- opb ope opi opm opo opp opr opv or- orb ore ori orm oro orp orr oru orv ou- oue oui oum ouo oup our ov- ovb ove ovi ovo ovp ovv p-p pbb pbe pbi pbm pbo pbp pbr pbu peb pee pei pem peo pep per peu pev pib pie pii pim pio pip pir piu piv pmb pme pmi pmm pmo pmp pmr pmu pmv pob poe poi pom poo pop por pou pov ppb ppe ppi ppm ppo ppp ppr ppu ppv prb pre pri prm pro prp prr pru prv pub pue pui pum pup pur puu pvb pve pvi pvm pvo pvp pvr pvu pvv rbb rbe rbi rbm rbo rbp rbr rbu re- reb ree rei rem reo rep rer reu rev rib rie rii rim rio rip rir riv rmb rme rmi rmm rmo rmp rmr rmv rob roe roi rom roo rop ror rou rov rpb rpe rpi rpm rpo rpp rpr rpu rpv rrb rri rrm rrp rrr rru rub rue rui rum ruo rup rur ruu ruv rvb rve rvi rvm rvo rvp rvr rvu rvv ubb ube ubi ubo ubp ubr ubu ubv ueb uee uei uem uep uer uib uie uii uim uio uip uir uiu um- umb ume umi umm umo ump umr umu uob uoe uom uoo uop uor up- upb upe upi upm upo upp upr upu upv ur- urb ure uri urm uro urp urr uru uue uum uur uuu uvb uve uvm uvo uvu uvv v-e vbi vbm vbo vbr vbv veb vee vei vem veo vep ver veu vi- vib vie vii vim vio vip vir viu viv vm- vmi vmm vmo vmr vmu vob voe voi vom voo vop vor vou vov vpb vpe vpi vpm vpo vpp vpr vpu vrb vre vri vrm vrp vrr vru vue vum vup vur vuv vvb vvi vvm vvo vvr vvv