-er -ol bbb bbe bbl bbo bbr be- beb bee bel beo ber bez blb ble bll blo blr blz bob boe bol boo bor boz brb bre brl bro brr brz bze bzo bzr bzz ebb ebe ebl ebo ebr eeb eee eel eeo eer elb ele ell elo elr elz eo- eob eoe eol eoo eor erb ere erl ero err erz eze ezo ezr ezz lbb lbe lbl lbo lbr leb lee lel leo ler lez llb lle lll llo llr llz lob loe lol loo lor loz lrb lro lrr lrz lzo lzr ob- obb obe obl obo obr oeb oee oel oeo oer olb ole oll olo oo- oob ool ooo oor or- orb ore orl oro orr orz oze ozo ozz rbb rbe rbl rbo rbr re- reb ree rel reo rer rez rle rll rlo rlr rob roe rol roo ror roz rrb rrl rrr rzb rze rzo zbb zbl zbr zeb zee zel zeo zer zez zlr zo- zob zoe zol zoo zor zrl zro zzr zzz