-er -ic -ol bbb bbc bbe bbi bbl bbo bbr bcb bcc bce bci bcl bco bcr be- beb bec bee bei bel beo ber bi- bib bic bie bii bil bio bir blb blc ble bli bll blo blr bob boc boe boi bol boo bor brb bre bri brl bro brr c-- cbb cbc cbe cbi cbl cbo cbr ccb ccc cce cci ccl cco ccr ce- ceb cec cee cei cel ceo cer ci- cib cic cie cii cil cio cir cl- clb clc cle cli cll clo clr co- cob coc coe coi col coo cor crb crc cre cri crl cro crr ebb ebc ebe ebi ebl ebo ebr ec- ecb ecc ece eci ecl eco ecr eeb eec eee eel eeo eer eib eic eie eii eil eio eir elb elc ele eli ell elo elr eo- eob eoc eoe eoi eol eoo eor erb erc ere eri erl ero err ibb ibc ibe ibi ibl ibo ibr icb icc ice ici icl ico icr ie- iec iee iei iel ier iib iic iie iii iil iio iir il- ilb ilc ile ili ill ilo ilr io- iob ioc ioe ioi iol ioo ior ir- irb irc ire iri irl iro irr lbb lbc lbe lbi lbl lbo lbr lcb lcc lce lci lcl lco lcr leb lec lee lei lel leo ler lib lic lie lii lil lio lir llb llc lle lli lll llo llr lob loc loe loi lol loo lor lrb lrc lri lro lrr o-i ob- obb obc obe obi obl obo obr oc- ocb occ oci ocl oco ocr oeb oec oee oei oel oeo oer oib oic oie oii oil oio oir olb olc ole oli oll olo oo- oob ooc ooi ool ooo oor or- orb orc ore ori orl oro orr rbb rbc rbe rbi rbl rbo rbr rcb rcc rce rci rcl rco rcr re- reb rec ree rei rel reo rer rib ric rie rii ril rio rir rlc rle rli rll rlo rlr rob roc roe roi rol roo ror rrb rrc rri rrl rrr