bbb bbe bbg bbm bbo bbs be- beb bee beg bem beo bes bgb bge bgg bgm bgo bgs bmb bme bmg bmm bmo bms bob boe bog bom boo bos bsb bse bsg bsm bso bss ebb ebe ebg ebm ebo ebs eeb eee eeg eem eeo ees egb ege egg egm ego egs em- emb eme emg emm emo ems eo- eob eoe eog eom eoo eos es- esb ese esg esm eso ess gbe gbg gbm gbo gbs ge- geb gee geg gem geo ges ggb ggg ggm ggo ggs gmb gme gmg gmm gmo gms gob goe gog gom goo gos gsb gse gsg gsm gso gss m-o mbb mbe mbg mbm mbo mbs meb mee meg mem meo mes mgb mge mgm mgo mgs mmb mme mmg mmm mmo mms mob moe mog mom moo mos msb mse msg msm mso mss ob- obb obe obg obm obo obs oeb oee oeg oem oeo oes oge ogg ogo ogs om- omb ome omg omm omo oms oo- oob oog oom ooo oos os- osb ose osg osm oso oss sbb sbe sbg sbm sbo sbs se- seb see seg sem seo ses sgb sge sgg sgm sgo sgs smb sme smg smm smo sms sob soe sog som soo sos ss- ssb sse ssg ssm sso sss