lpd lpe lpi lpl lpo lpp lpr lps lpt lra lrb lrc lrd lri lro lrp lrr lrs lrt lsa lsb lsc lsd lse lsi lsl lso lsp lsr lss lst lta ltb ltc ltd lte lti ltl lto ltp ltr lts ltt o-i oaa oab oac oad oae oai oal oao oap oar oas oat ob- oba obb obc obd obe obi obl obo obp obr obs obt oc- oca ocb occ ocd oci ocl oco ocp ocr ocs oct oda odb odc odd ode odi odl odo odp odr ods odt oea oeb oec oed oee oei oel oeo oep oer oes oet oia oib oic oid oie oii oil oio oip oir ois oit ola olb olc old ole oli oll olo olp ols olt oo- ooa oob ooc ood ooi ool ooo oop oor oos oot op- opa opb opc opd ope opi opl opo opp opr ops opt or- ora orb orc ord ore ori orl oro orp orr ors ort os- osa osb osc osd ose osi osl oso osp osr oss ost ot- ota otb otc otd ote oti otl oto otp otr ots ott p-p paa pab pac pad pae pai pal pao pap par pas pat pba pbb pbc pbd pbe pbi pbl pbo pbp pbr pbs pbt pca pcb pcc pcd pce pci pcl pco pcp pcr pcs pct pda pdb pdc pdd pde pdi pdl pdo pdp pdr pds pdt pea peb pec ped pee pei pel peo pep per pes pet pia pib pic pid pie pii pil pio pip pir pis pit pla plb plc pld ple pli pll plo plp plr pls plt poa pob poc pod poe poi pol poo pop por pos pot ppa ppb ppc ppd ppe ppi ppl ppo ppp ppr pps ppt pra prb prc prd pre pri prl pro prp prr prs prt ps- psa psb psc psd pse psi psl pso psp psr pss pst pt- pta ptb ptc ptd pte pti ptl pto ptp ptr pts ptt ra- raa rab rac rad rae rai ral rao rap rar ras rat rba rbb rbc rbd rbe rbi rbl rbo rbp rbr rbs rbt rca rcb rcc rcd rce rci rcl rco rcp rcr rcs rct rda rdb rdc rdd rde rdi rdl rdo rdp rdr rds rdt re- rea reb rec red ree rei rel reo rep rer res ret ria rib ric rid rie rii ril rio rip rir ris rit rla rlc rld rle rli rll rlo rlp rlr rls rlt roa rob roc rod roe roi rol roo rop ror ros rot rpa rpb rpc rpd rpe rpi rpl rpo rpp rpr rps rpt rra rrb rrc rrd rri rrl rrp rrr rrs rrt rsa rsb rsc rsd rse rsi rsl rso rsp rsr rss rst rta rtb rtc rtd rte rti rtl rto rtp rtr rts rtt saa sab sac sad sae sai sal sao sap sar sas sat sba sbb sbc sbd sbe sbi sbl sbo sbp sbr sbs sbt sca scb scc scd sce sci scl sco scp scr scs sct sda sdb sdc sdd sde sdi sdl sdo sdp sdr sds sdt se- sea seb sec sed see sei sel seo sep ser ses set sia sib sic sid sie sii sil sio sip sir sis sit sla slb slc sld sle sli sll slo slp slr sls slt soa sob soc sod soe soi sol soo sop sor sos sot spa spb spc spd spe spi spl spo spp spr sps spt sr- sra srb src srd sre sri srl sro srp srr srs srt ss- ssa ssb ssc ssd sse ssi ssl sso ssp ssr sss sst sta stb stc std ste sti stl sto stp str sts stt taa tab tac tad tae tai tal tao tap tar tas tat tba tbb tbc tbd tbe tbi tbl tbo tbp tbr tbs tbt tca tcb tcc tcd tce tci tcl tco tcp tcr tcs tct tda tdb tdc tdd tde tdi tdl tdo tdp tdr tds tdt te- tea teb tec ted tee tei tel teo tep ter tes tet tia tib tic tid tie tii til tio tip tir tis tit tla tlc tld tle tli tll tlo tlp tlr tls tlt to- toa tob toc tod toe toi tol too top tor tos tot tpa tpb tpc tpd tpe tpi tpl tpo tpp tpr tps tpt tra trb trc trd tre tri trl tro trp trr trs trt tsa tsb tsc tsd tse tsi tsl tso tsp tsr tss tst tta ttb ttc ttd tte tti ttl tto ttp ttr tts ttt