-ol bbb bbi bbl bbm bbo bbs bbt bi- bib bii bil bim bio bis bit biv blb bli bll blm blo bls blt blv bmb bmi bml bmm bmo bms bmt bmv bob boi bol bom boo bos bot bov bsb bsi bsl bsm bso bss bst bsv btb bti btl btm bto bts btt btv bvb bvi bvl bvm bvo bvs bvt bvv i-v ibb ibi ibl ibm ibo ibs ibt ibv iib iii iil iim iio iis iit il- ilb ili ill ilm ilo ils ilt ilv im- imb imi iml imm imo ims imt imv io- iob ioi iol iom ioo ios iot iov is- isb isi isl ism iso iss ist isv itb iti itl itm ito its itt itv ivb ivi ivl ivo ivs ivt ivv lbb lbi lbl lbm lbo lbs lbt lbv lib lii lil lim lio lis lit liv llb lli lll llm llo lls llt llv lmb lmi lml lmm lmo lms lmt lmv lob loi lol lom loo los lot lov lsb lsi lsl lsm lso lss lst lsv ltb lti ltl ltm lto lts ltt ltv lvb lvi lvl lvm lvs lvt lvv m-o m-v mbb mbi mbl mbm mbo mbs mbt mbv mi- mib mii mil mim mio mis mit miv mlb mli mll mlm mlo mls mlt mlv mmb mmi mml mmm mmo mms mmt mmv mob moi mol mom moo mos mot mov msb msi msl msm mso mss mst msv mtb mti mtl mtm mto mts mtt mtv mvb mvi mvl mvm mvo mvs mvt mvv o-i ob- obb obi obl obm obo obs obt obv oib oii oil oim oio ois oit oiv olb oli oll olm olo ols olt om- omb omi oml omm omo oms omt omv oo- oob ooi ool oom ooo oos oot oov os- osb osi osl osm oso oss ost osv ot- otb oti otl otm oto ots ott otv ov- ovb ovi ovl ovo ovs ovv sbb sbi sbl sbm sbo sbs sbt sbv sib sii sil sim sio sis sit siv slb sli sll slm slo sls slt slv smb smi sml smm smo sms smt smv sob soi sol som soo sos sot sov ss- ssb ssi ssl ssm sso sss sst ssv stb sti stl stm sto sts stt stv svb svi svl svm svo svs svt svv tbb tbi tbl tbm tbo tbs tbt tbv tib tii til tim tio tis tit tiv tli tll tlm tlo tls tlt tlv tmb tmi tml tmm tmo tms tmt tmv to- tob toi tol tom too tos tot tov tsb tsi tsl tsm tso tss tst tsv ttb tti ttl ttm tto tts ttt ttv tvb tvi tvl tvm tvo tvs tvt vbi vbl vbm vbo vbs vbv vi- vib vii vil vim vio vis vit viv vl- vlb vll vlm vlo vls vlt vlv vm- vmi vmm vmo vmt vob voi vol vom voo vos vot vov vsb vsi vsl vsm vso vss vst vsv vtb vti vtl vtm vto vts vtt vtv vvb vvi vvm vvo vvs vvt vvv