-er -ic -ol b-u bbb bbc bbe bbi bbl bbo bbr bbu bcb bcc bce bci bcl bco bcr bcu bcv be- beb bec bee bei bel beo ber beu bev bi- bib bic bie bii bil bio bir biu biv blb blc ble bli bll blo blr blu blv bob boc boe boi bol boo bor bou bov brb bre bri brl bro brr bru brv bub buc bue bui bul buo bur buu bvb bvc bve bvi bvl bvo bvr bvu bvv c-- cbb cbc cbe cbi cbl cbo cbr cbu cbv ccb ccc cce cci ccl cco ccr ccu ccv ce- ceb cec cee cei cel ceo cer ceu cev ci- cib cic cie cii cil cio cir ciu civ cl- clb clc cle cli cll clo clr clu clv co- cob coc coe coi col coo cor cou cov crb crc cre cri crl cro crr cru crv cub cuc cue cui cul cuo cur cuu cuv cvb cvc cve cvi cvl cvo cvr cvu cvv ebb ebc ebe ebi ebl ebo ebr ebu ebv ec- ecb ecc ece eci ecl eco ecr ecu ecv eeb eec eee eel eeo eer eev eib eic eie eii eil eio eir eiu eiv elb elc ele eli ell elo elr elu elv eo- eob eoc eoe eoi eol eoo eor eou erb erc ere eri erl ero err eru erv eu- eub euc eue eui eul eur euv evb evc eve evi evl evo evr evv i-v ibb ibc ibe ibi ibl ibo ibr ibu ibv icb icc ice ici icl ico icr icu icv ie- iec iee iei iel ier iev iib iic iie iii iil iio iir iiu il- ilb ilc ile ili ill ilo ilr ilu ilv io- iob ioc ioe ioi iol ioo ior iou iov ir- irb irc ire iri irl iro irr iru irv iu- iub iuc iue iui iur ivb ivc ive ivi ivl ivo ivr ivu ivv lbb lbc lbe lbi lbl lbo lbr lbu lbv lcb lcc lce lci lcl lco lcr lcu lcv leb lec lee lei lel leo ler leu lev lib lic lie lii lil lio lir liu liv llb llc lle lli lll llo llr llu llv lob loc loe loi lol loo lor lou lov lrb lrc lri lro lrr lru lrv lub luc lue lui lul luo lur luu luv lvb lvc lve lvi lvl lvr lvv o-i ob- obb obc obe obi obl obo obr obu obv oc- ocb occ oci ocl oco ocr ocu ocv oeb oec oee oei oel oeo oer oib oic oie oii oil oio oir oiu oiv olb olc ole oli oll olo olu oo- oob ooc ooi ool ooo oor oov or- orb orc ore ori orl oro orr oru orv ou- ouc oue oui oul ouo our ov- ovb ovc ove ovi ovl ovo ovv rbb rbc rbe rbi rbl rbo rbr rbu rcb rcc rce rci rcl rco rcr rcu rcv re- reb rec ree rei rel reo rer reu rev rib ric rie rii ril rio rir riv rlc rle rli rll rlo rlr rlu rob roc roe roi rol roo ror rou rov rrb rrc rri rrl rrr rru rub ruc rue rui ruo rur ruu ruv rvb rvc rve rvi rvl rvo rvr rvu rvv ubb ubc ube ubi ubl ubo ubr ubu ubv ucb ucc uce uci ucl uco ucr ucu ucv ueb uec uee uei uel uer uib uic uie uii uil uio uir uiu ulb ulc ule uli ull ulo ulr ulu ulv uob uoc uoe uol uoo uor ur- urb urc ure uri url uro urr uru uuc uue uur uuu uvb uvc uve uvl uvo uvu uvv v-e vbc vbi vbl vbo vbr vbv vcc vce vci vcl vco vcr vcu veb vec vee vei vel veo ver veu vi- vib vic vie vii vil vio vir viu viv vl- vlb vlc vle vll vlo vlv vob voc voe voi vol voo vor vou vov vrb vrc vre vri vrr vru vue vul vur vuv vvb vvc vvi vvo vvr vvv