-ol bbb bbe bbg bbi bbl bbm bbo bbt be- beb bee beg bei bel bem beo bet bgb bge bgg bgi bgl bgm bgo bgt bi- bib bie big bii bil bim bio bit blb ble blg bli bll blm blo blt bmb bme bmg bmi bml bmm bmo bmt bob boe bog boi bol bom boo bot btb bte btg bti btl btm bto btt ebb ebe ebg ebi ebl ebm ebo ebt eeb eee eeg eel eem eeo eet egb ege egg egi egl egm ego egt eib eie eig eii eil eim eio eit elb ele elg eli ell elm elo elt em- emb eme emg emi eml emm emo emt eo- eob eoe eog eoi eol eom eoo eot etb ete etg eti etl etm eto ett gbe gbg gbi gbl gbm gbo gbt ge- geb gee geg gei gel gem geo get ggb ggg ggi ggm ggo ggt gib gie gig gii gil gim gio git glb gle glg gli gll glm glo glt gmb gme gmg gmi gml gmm gmo gmt gob goe gog goi gol gom goo got gtb gte gtg gti gtl gtm gto gtt ibb ibe ibg ibi ibl ibm ibo ibt ie- iee ieg iei iel iem iet igb ige igg igi igl igm igo igt iib iie iii iil iim iio iit il- ilb ile ilg ili ill ilm ilo ilt im- imb ime img imi iml imm imo imt io- iob ioe iog ioi iol iom ioo iot itb ite itg iti itl itm ito itt lbb lbe lbg lbi lbl lbm lbo lbt leb lee leg lei lel lem leo let lgb lge lgg lgi lgl lgm lgo lgt lib lie lig lii lil lim lio lit llb lle llg lli lll llm llo llt lmb lme lmg lmi lml lmm lmo lmt lob loe log loi lol lom loo lot ltb lte ltg lti ltl ltm lto ltt m-o mbb mbe mbg mbi mbl mbm mbo mbt meb mee meg mei mel mem meo met mgb mge mgi mgl mgm mgo mgt mi- mib mie mig mii mil mim mio mit mlb mle mlg mli mll mlm mlo mlt mmb mme mmg mmi mml mmm mmo mmt mob moe mog moi mol mom moo mot mtb mte mtg mti mtl mtm mto mtt o-i ob- obb obe obg obi obl obm obo obt oeb oee oeg oei oel oem oeo oet oge ogg ogi ogl ogo ogt oib oie oii oil oim oio oit olb ole olg oli oll olm olo olt om- omb ome omg omi oml omm omo omt oo- oob oog ooi ool oom ooo oot ot- otb ote otg oti otl otm oto ott tbb tbe tbg tbi tbl tbm tbo tbt te- teb tee teg tei tel tem teo tet tgb tge tgg tgi tgl tgm tgo tgt tib tie tig tii til tim tio tit tle tlg tli tll tlm tlo tlt tmb tme tmg tmi tml tmm tmo tmt to- tob toe tog toi tol tom too tot ttb tte ttg tti ttl ttm tto ttt