-ol b-u bbb bbe bbi bbl bbo bbu be- beb bee bei bel beo beu bi- bib bie bii bil bio biu blb ble bli bll blo blu bob boe boi bol boo bou bub bue bui bul buo buu ebb ebe ebi ebl ebo ebu eeb eee eel eeo eib eie eii eil eio eiu elb ele eli ell elo elu eo- eob eoe eoi eol eoo eou eu- eub eue eui eul ibb ibe ibi ibl ibo ibu ie- iee iei iel iib iie iii iil iio iiu il- ilb ile ili ill ilo ilu io- iob ioe ioi iol ioo iou iu- iub iue iui lbb lbe lbi lbl lbo lbu leb lee lei lel leo leu lib lie lii lil lio liu llb lle lli lll llo llu lob loe loi lol loo lou lub lue lui lul luo luu o-i ob- obb obe obi obl obo obu oeb oee oei oel oeo oib oie oii oil oio oiu olb ole oli oll olo olu oo- oob ooi ool ooo ou- oue oui oul ouo ubb ube ubi ubl ubo ubu ueb uee uei uel uib uie uii uil uio uiu ulb ule uli ull ulo ulu uob uoe uol uoo uue uuu