-er -ic -ol b-u bbb bbc bbe bbh bbi bbl bbo bbr bbu bcb bcc bce bch bci bcl bco bcr bcu be- beb bec bee beh bei bel beo ber beu bhb bhc bhe bhh bhi bhl bho bhr bhu bi- bib bic bie bih bii bil bio bir biu blb blc ble blh bli bll blo blr blu bob boc boe boh boi bol boo bor bou brb bre brh bri brl bro brr bru bub buc bue buh bui bul buo bur buu c-- cbb cbc cbe cbh cbi cbl cbo cbr cbu ccb ccc cce cch cci ccl cco ccr ccu ce- ceb cec cee ceh cei cel ceo cer ceu ch- chb chc che chh chi chl cho chr chu ci- cib cic cie cih cii cil cio cir ciu cl- clb clc cle clh cli cll clo clr clu co- cob coc coe coh coi col coo cor cou crb crc cre crh cri crl cro crr cru cub cuc cue cuh cui cul cuo cur cuu ebb ebc ebe ebh ebi ebl ebo ebr ebu ec- ecb ecc ece ech eci ecl eco ecr ecu eeb eec eee eel eeo eer ehb ehc ehe ehh ehi ehl eho ehr ehu eib eic eie eii eil eio eir eiu elb elc ele elh eli ell elo elr elu eo- eob eoc eoe eoh eoi eol eoo eor eou erb erc ere erh eri erl ero err eru eu- eub euc eue eui eul eur h-i hbb hbc hbe hbh hbi hbl hbo hbr hbu hcb hcc hce hch hci hcl hco hcr he- heb hec hee heh hei hel heo her heu hhb hhc hhe hhh hhi hhl hho hhr hhu hib hic hie hih hii hil hio hir hiu hlb hlc hle hlh hli hll hlo hlr hlu hob hoc hoe hoh hoi hol hoo hor hou hr- hrb hrc hre hrh hri hrl hro hrr hru hub huc hue huh hui hul huo hur huu ibb ibc ibe ibh ibi ibl ibo ibr ibu icb icc ice ich ici icl ico icr icu ie- iec iee iei iel ier ihb ihc ihe ihh ihi ihl iho ihr ihu iib iic iie iih iii iil iio iir iiu il- ilb ilc ile ilh ili ill ilo ilr ilu io- iob ioc ioe ioh ioi iol ioo ior iou ir- irb irc ire iri irl iro irr iru iu- iub iuc iue iui iur lbb lbc lbe lbh lbi lbl lbo lbr lbu lcb lcc lce lch lci lcl lco lcr lcu leb lec lee leh lei lel leo ler leu lhb lhc lhh lhi lho lhr lhu lib lic lie lih lii lil lio lir liu llb llc lle lli lll llo llr llu lob loc loe loh loi lol loo lor lou lrb lrc lrh lri lro lrr lru lub luc lue luh lui lul luo lur luu o-i ob- obb obc obe obh obi obl obo obr obu oc- ocb occ och oci ocl oco ocr ocu oeb oec oee oeh oei oel oeo oer ohc ohe ohh ohi ohl oho ohr ohu oib oic oie oii oil oio oir oiu olb olc ole oli oll olo olu oo- oob ooc ooh ooi ool ooo oor or- orb orc ore orh ori orl oro orr oru ou- ouc oue ouh oui oul ouo our rbb rbc rbe rbh rbi rbl rbo rbr rbu rcb rcc rce rch rci rcl rco rcr rcu re- reb rec ree reh rei rel reo rer reu rh- rhb rhc rhe rhh rhi rhl rho rhr rhu rib ric rie rih rii ril rio rir rlc rle rlh rli rll rlo rlr rlu rob roc roe roh roi rol roo ror rou rrb rrc rrh rri rrl rrr rru rub ruc rue ruh rui ruo rur ruu ubb ubc ube ubh ubi ubl ubo ubr ubu ucb ucc uce uch uci ucl uco ucr ucu ueb uec uee ueh uei uel uer uhb uhc uhe uhh uhi uhl uho uhr uhu uib uic uie uii uil uio uir uiu ulb ulc ule uli ull ulo ulr ulu uob uoc uoe uol uoo uor ur- urb urc ure uri url uro urr uru uuc uue uur uuu