rco rcp rcr rcs rcu re- rea rec ree reh rei ren reo rep rer res reu rh- rha rhc rhe rhh rhi rhn rho rhp rhr rhs rhu ria ric rie rih rii rin rio rip rir ris rna rnc rnh rni rnn rno rnp rnr rns rnu roa roc roe roh roi ron roo rop ror ros rou rpa rpc rpe rph rpi rpn rpo rpp rpr rps rpu rra rrc rrh rri rrn rrp rrr rrs rru rsa rsc rse rsh rsi rsn rso rsp rsr rss rsu rua ruc rue ruh rui run ruo rup rur rus ruu saa sac sae sah sai san sao sap sar sas sau sca scc sce sch sci scn sco scp scr scs scu se- sea sec see seh sei sen seo sep ser ses seu sh- sha shc she shh shi shn sho shp shr shs shu sia sic sie sih sii sin sio sip sir sis siu sna snc sne sni snn sno snp snr sns snu soa soc soe soh soi son soo sop sor sos sou spa spc spe sph spi spn spo spp spr sps spu sr- sra src sre srh sri srn sro srp srr srs ss- ssa ssc sse ssh ssi ssn sso ssp ssr sss ssu sua suc sue suh sui sun suo sup sur sus suu ua- uaa uac uae uah uai uan uao uap uar uas uau uca ucc uce uch uci ucn uco ucp ucr ucs ucu uea uec uee ueh uei uen uep uer ues uha uhc uhe uhh uhi uho uhp uhr uhs uhu uia uic uie uii uin uio uip uir uis uiu un- una unc une unh uni unn uno unp unr uns unu uoa uoc uoe uon uoo uop uor uos up- upa upc upe uph upi upn upo upp upr ups upu ur- ura urc ure uri urn uro urp urr urs uru usa usc use ush usi usn uso usp usr uss usu uua uuc uue uun uur uus uuu