-er -ol b-p bbb bbe bbi bbl bbo bbp bbr bbt be- beb bee bei bel beo bep ber bet bi- bib bie bii bil bio bip bir bit blb ble bli bll blo blp blr blt bob boe boi bol boo bop bor bot bpb bpe bpi bpl bpo bpp bpr bpt brb bre bri brl bro brp brr brt btb bte bti btl bto btp btr btt ebb ebe ebi ebl ebo ebp ebr ebt eeb eee eel eeo eep eer eet eib eie eii eil eio eip eir eit elb ele eli ell elo elp elr elt eo- eob eoe eoi eol eoo eop eor eot ep- epb epe epi epl epo epp epr ept erb ere eri erl ero erp err ert etb ete eti etl eto etp etr ett ibb ibe ibi ibl ibo ibp ibr ibt ie- iee iei iel iep ier iet iib iie iii iil iio iip iir iit il- ilb ile ili ill ilo ilp ilr ilt io- iob ioe ioi iol ioo iop ior iot ipb ipe ipi ipl ipo ipp ipr ipt ir- irb ire iri irl iro irp irr irt itb ite iti itl ito itp itt l-p lbb lbe lbi lbl lbo lbp lbr lbt leb lee lei lel leo lep ler let lib lie lii lil lio lip lir lit llb lle lli lll llo llp llr llt lob loe loi lol loo lop lor lot lpb lpe lpi lpl lpo lpp lpr lpt lrb lri lro lrp lrr lrt ltb lte lti ltl lto ltp ltr ltt o-i ob- obb obe obi obl obo obp obr obt oeb oee oei oel oeo oep oer oet oib oie oii oil oio oip oir oit olb ole oli oll olo olp olt oo- oob ooi ool ooo oop oor oot op- opb ope opi opl opo opp opr opt or- orb ore ori orl oro orp orr ort ot- otb ote oti otl oto otp otr ott p-p pbb pbe pbi pbl pbo pbp pbr pbt peb pee pei pel peo pep per pet pib pie pii pil pio pip pir pit plb ple pli pll plo plp plr plt pob poe poi pol poo pop por pot ppb ppe ppi ppl ppo ppp ppr ppt prb pre pri prl pro prp prr prt pt- ptb pte pti ptl pto ptp ptr ptt rbb rbe rbi rbl rbo rbp rbr rbt re- reb ree rei rel reo rep rer ret rib rie rii ril rio rip rir rit rle rli rll rlo rlp rlr rlt rob roe roi rol roo rop ror rot rpb rpe rpi rpl rpo rpp rpr rpt rrb rri rrl rrp rrr rrt rtb rte rti rtl rto rtp rtr rtt tbb tbe tbi tbl tbo tbp tbr tbt te- teb tee tei tel teo tep ter tet tib tie tii til tio tip tir tit tle tli tll tlo tlp tlr tlt to- tob toe toi tol too top tor tot tpb tpe tpi tpl tpo tpp tpr tpt trb tre tri trl tro trp trr trt ttb tte tti ttl tto ttp ttr ttt