osr oss ost osu ot- ota otc ote otg oti otl oto otp otr ots ott otu ou- oua ouc oue oui oul ouo oup our ous out p-p paa pac pae pag pai pal pao pap par pas pat pau pca pcc pce pcg pci pcl pco pcp pcr pcs pct pcu pea pec pee peg pei pel peo pep per pes pet peu pga pgc pge pgg pgi pgl pgo pgp pgr pgs pgt pia pic pie pig pii pil pio pip pir pis pit piu pla plc ple plg pli pll plo plp plr pls plt plu poa poc poe pog poi pol poo pop por pos pot pou ppa ppc ppe ppg ppi ppl ppo ppp ppr pps ppt ppu pra prc pre prg pri prl pro prp prr prs prt pru ps- psa psc pse psg psi psl pso psp psr pss pst psu pt- pta ptc pte ptg pti ptl pto ptp ptr pts ptt ptu pua puc pue pug pui pul pup pur pus put puu ra- raa rac rae rag rai ral rao rap rar ras rat rau rca rcc rce rcg rci rcl rco rcp rcr rcs rct rcu re- rea rec ree reg rei rel reo rep rer res ret reu rga rgc rge rgg rgi rgo rgp rgr rgs rgt ria ric rie rig rii ril rio rip rir ris rit rla rlc rle rlg rli rll rlo rlp rlr rls rlt rlu roa roc roe rog roi rol roo rop ror ros rot rou rpa rpc rpe rpg rpi rpl rpo rpp rpr rps rpt rpu rra rrc rrg rri rrl rrp rrr rrs rrt rru rsa rsc rse rsg rsi rsl rso rsp rsr rss rst rsu rta rtc rte rtg rti rtl rto rtp rtr rts rtt rtu rua ruc rue rug rui ruo rup rur rus rut ruu saa sac sae sag sai sal sao sap sar sas sat sau sca scc sce scg sci scl sco scp scr scs sct scu se- sea sec see seg sei sel seo sep ser ses set seu sga sgc sge sgg sgi sgl sgo sgp sgr sgs sgt sgu sia sic sie sig sii sil sio sip sir sis sit siu sla slc sle slg sli sll slo slp slr sls slt slu soa soc soe sog soi sol soo sop sor sos sot sou spa spc spe spg spi spl spo spp spr sps spt spu sr- sra src sre srg sri srl sro srp srr srs srt ss- ssa ssc sse ssg ssi ssl sso ssp ssr sss sst ssu sta stc ste stg sti stl sto stp str sts stt stu sua suc sue sug sui sul suo sup sur sus sut suu taa tac tae tag tai tal tao tap tar tas tat tau tca tcc tce tcg tci tcl tco tcp tcr tcs tct tcu te- tea tec tee teg tei tel teo tep ter tes tet teu tga tgc tge tgg tgi tgl tgo tgp tgr tgs tgt tgu tia tic tie tig tii til tio tip tir tis tit tiu tla tlc tle tlg tli tll tlo tlp tlr tls tlt tlu to- toa toc toe tog toi tol too top tor tos tot tou tpa tpc tpe tpg tpi tpl tpo tpp tpr tps tpt tpu tra trc tre trg tri trl tro trp trr trs trt tru tsa tsc tse tsg tsi tsl tso tsp tsr tss tst tsu tta ttc tte ttg tti ttl tto ttp ttr tts ttt ttu tua tuc tue tug tui tul tuo tup tur tus tut tuu ua- uaa uac uae uag uai ual uao uap uar uas uat uau uca ucc uce ucg uci ucl uco ucp ucr ucs uct ucu uea uec uee ueg uei uel uep uer ues uet uga ugc uge ugg ugi ugl ugo ugp ugr ugs ugt ugu uia uic uie uig uii uil uio uip uir uis uit uiu ula ulc ule ulg uli ull ulo ulp ulr uls ult ulu uoa uoc uoe uog uol uoo uop uor uos uot up- upa upc upe upg upi upo upp upr ups upt upu ur- ura urc ure urg uri url uro urp urr urs urt uru usa usc use usg usi usl uso usp usr uss ust usu uta utc ute uti utl uto utp utr uts utt utu uua uuc uue uug uur uus uut uuu