-ol bbb bbg bbi bbl bbm bbo bbt bgb bgg bgi bgl bgm bgo bgt bi- bib big bii bil bim bio bit blb blg bli bll blm blo blt bmb bmg bmi bml bmm bmo bmt bob bog boi bol bom boo bot btb btg bti btl btm bto btt gbg gbi gbl gbm gbo gbt ggb ggg ggi ggm ggo ggt gib gig gii gil gim gio git glb glg gli gll glm glo glt gmb gmg gmi gml gmm gmo gmt gob gog goi gol gom goo got gtb gtg gti gtl gtm gto gtt ibb ibg ibi ibl ibm ibo ibt igb igg igi igl igm igo igt iib iii iil iim iio iit il- ilb ilg ili ill ilm ilo ilt im- imb img imi iml imm imo imt io- iob iog ioi iol iom ioo iot itb itg iti itl itm ito itt lbb lbg lbi lbl lbm lbo lbt lgb lgg lgi lgl lgm lgo lgt lib lig lii lil lim lio lit llb llg lli lll llm llo llt lmb lmg lmi lml lmm lmo lmt lob log loi lol lom loo lot ltb ltg lti ltl ltm lto ltt m-o mbb mbg mbi mbl mbm mbo mbt mgb mgi mgl mgm mgo mgt mi- mib mig mii mil mim mio mit mlb mlg mli mll mlm mlo mlt mmb mmg mmi mml mmm mmo mmt mob mog moi mol mom moo mot mtb mtg mti mtl mtm mto mtt o-i ob- obb obg obi obl obm obo obt ogg ogi ogl ogo ogt oib oii oil oim oio oit olb olg oli oll olm olo olt om- omb omg omi oml omm omo omt oo- oob oog ooi ool oom ooo oot ot- otb otg oti otl otm oto ott tbb tbg tbi tbl tbm tbo tbt tgb tgg tgi tgl tgm tgo tgt tib tig tii til tim tio tit tlg tli tll tlm tlo tlt tmb tmg tmi tml tmm tmo tmt to- tob tog toi tol tom too tot ttb ttg tti ttl ttm tto ttt