ppd ppe pph ppj ppn ppo ppp ppr pps pra prc prd pre prh prn pro prp prr prs ps- psa psc psd pse psh psj psn pso psp psr pss ra- raa rac rad rae rah raj ran rao rap rar ras rca rcc rcd rce rch rcj rcn rco rcp rcr rcs rda rdc rdd rde rdh rdj rdn rdo rdp rdr rds re- rea rec red ree reh ren reo rep rer res rh- rha rhc rhd rhe rhh rhn rho rhp rhr rhs rja rjc rjp rjr rna rnc rnd rnh rnn rno rnp rnr rns roa roc rod roe roh roj ron roo rop ror ros rpa rpc rpd rpe rph rpn rpo rpp rpr rps rra rrc rrd rrh rrn rrp rrr rrs rsa rsc rsd rse rsh rsj rsn rso rsp rsr rss saa sac sad sae sah saj san sao sap sar sas sca scc scd sce sch scj scn sco scp scr scs sda sdc sdd sde sdh sdj sdn sdo sdp sdr sds se- sea sec sed see seh sej sen seo sep ser ses sh- sha shc shd she shh shn sho shp shr shs sja sjc sjd sje sjh sjj sjp sjr sjs sna snc snd sne snj snn sno snp snr sns soa soc sod soe soh soj son soo sop sor sos spa spc spd spe sph spn spo spp spr sps sr- sra src srd sre srh srj srn sro srp srr srs ss- ssa ssc ssd sse ssh ssj ssn sso ssp ssr sss