lrk lro lrp lrr lrs lsa lsd lse lsf lsg lsj lsk lsl lso lsp lsr lss oaa oad oae oaf oag oaj oak oal oao oap oar oas oda odd ode odf odg odl odo odp odr ods oea oed oee oef oeg oel oeo oep oer oes of- ofa ofd ofe off ofg ofl ofo ofp ofr ofs oga ogd oge ogf ogg ogl ogo ogp ogs oja ojd oje ojo ojs oka okd oke okg okj okk okl oko okp okr oks ola old ole olf olg olk oll olo olp ols oo- ooa ood oof oog ook ool ooo oop oor oos op- opa opd ope opf opg opj opk opl opo opp opr ops or- ora ord ore orf org ork orl oro orp orr ors os- osa osd ose osf osg osj osk osl oso osp osr oss p-p paa pad pae paf pag paj pak pal pao pap par pas pda pdd pde pdf pdg pdk pdl pdo pdp pdr pds pea ped pee pef peg pek pel peo pep per pes pfa pfd pfe pff pfg pfk pfl pfo pfp pfr pfs pga pgd pge pgf pgg pgk pgl pgo pgp pgr pgs pja pjd pjf pjo pjp pjs pka pkd pke pkf pkg pkl pko pkp pkr pks pla pld ple plf plg plk pll plo plp plr pls poa pod poe pof pog pok pol poo pop por pos ppa ppd ppe ppf ppg ppj ppk ppl ppo ppp ppr pps pra prd pre prf prg prk prl pro prp prr prs ps- psa psd pse psf psg psj psk psl pso psp psr pss ra- raa rad rae raf rag raj rak ral rao rap rar ras rda rdd rde rdf rdg rdj rdl rdo rdp rdr rds re- rea red ree ref reg rek rel reo rep rer res rfa rfd rfe rff rfg rfj rfk rfl rfo rfp rfr rfs rga rgd rge rgf rgg rgk rgo rgp rgr rgs rja rjf rjg rjk rjp rjr rke rkf rkg rkk rko rkp rks rla rld rle rlf rlg rll rlo rlp rlr rls roa rod roe rof rog roj rok rol roo rop ror ros rpa rpd rpe rpf rpg rpk rpl rpo rpp rpr rps rra rrd rrf rrg rrk rrl rrp rrr rrs rsa rsd rse rsf rsg rsj rsk rsl rso rsp rsr rss saa sad sae saf sag saj sak sal sao sap sar sas sda sdd sde sdf sdg sdj sdk sdl sdo sdp sdr sds se- sea sed see sef seg sej sek sel seo sep ser ses sfa sfd sfe sff sfg sfj sfk sfl sfo sfp sfr sfs sga sgd sge sgf sgg sgk sgl sgo sgp sgr sgs sja sjd sje sjf sjj sjk sjp sjr sjs sk- ska skd ske skf skg skj skk skl sko skp skr sks sla sld sle slf slg slj slk sll slo slp slr sls soa sod soe sof sog soj sok sol soo sop sor sos spa spd spe spf spg spk spl spo spp spr sps sr- sra srd sre srf srg srj srk srl sro srp srr srs ss- ssa ssd sse ssf ssg ssj ssk ssl sso ssp ssr sss