-ol bbb bbi bbl bbm bbo bbt bi- bib bii bil bim bio bit biz blb bli bll blm blo blt blz bmb bmi bml bmm bmo bmt bmz bob boi bol bom boo bot boz btb bti btl btm bto btt btz bzo bzz ibb ibi ibl ibm ibo ibt ibz iib iii iil iim iio iit il- ilb ili ill ilm ilo ilt ilz im- imb imi iml imm imo imt imz io- iob ioi iol iom ioo iot itb iti itl itm ito itt itz izi izm izo izz lbb lbi lbl lbm lbo lbt lib lii lil lim lio lit liz llb lli lll llm llo llt llz lmb lmi lml lmm lmo lmt lob loi lol lom loo lot loz ltb lti ltl ltm lto ltt ltz lzi lzo m-o mbb mbi mbl mbm mbo mbt mi- mib mii mil mim mio mit miz mlb mli mll mlm mlo mlt mmb mmi mml mmm mmo mmt mmz mob moi mol mom moo mot moz mtb mti mtl mtm mto mtt mzb mzi mzm mzt o-i ob- obb obi obl obm obo obt oib oii oil oim oio oit oiz olb oli oll olm olo olt om- omb omi oml omm omo omt omz oo- oob ooi ool oom ooo oot ot- otb oti otl otm oto ott otz ozm ozo ozt ozz tbb tbi tbl tbm tbo tbt tbz tib tii til tim tio tit tiz tli tll tlm tlo tlt tlz tmb tmi tml tmm tmo tmt tmz to- tob toi tol tom too tot toz ttb tti ttl ttm tto ttt zbb zbl zbm zbt zib zil zim zio zit ziz zlt zmb zmm zmt zo- zob zoi zol zom zoo zot ztl ztm zzt zzz