-ol bbb bbg bbl bbm bbo bbs bgb bgg bgl bgm bgo bgs blb blg bll blm blo bls bmb bmg bml bmm bmo bms bob bog bol bom boo bos bsb bsg bsl bsm bso bss gbg gbl gbm gbo gbs ggb ggg ggm ggo ggs glb glg gll glm glo gls gmb gmg gml gmm gmo gms gob gog gol gom goo gos gsb gsg gsl gsm gso gss lbb lbg lbl lbm lbo lbs lgb lgg lgl lgm lgo lgs llb llg lll llm llo lls lmb lmg lml lmm lmo lms lob log lol lom loo los lsb lsg lsl lsm lso lss m-o mbb mbg mbl mbm mbo mbs mgb mgl mgm mgo mgs mlb mlg mll mlm mlo mls mmb mmg mml mmm mmo mms mob mog mol mom moo mos msb msg msl msm mso mss ob- obb obg obl obm obo obs ogg ogl ogo ogs olb olg oll olm olo ols om- omb omg oml omm omo oms oo- oob oog ool oom ooo oos os- osb osg osl osm oso oss sbb sbg sbl sbm sbo sbs sgb sgg sgl sgm sgo sgs slb slg sll slm slo sls smb smg sml smm smo sms sob sog sol som soo sos ss- ssb ssg ssl ssm sso sss