pgi pgl pgm pgo pgp pgr pgs phc phe phg phi phl phm pho php phr phs pic pie pig pih pii pil pim pio pip pir pis plc ple plg plh pli pll plm plo plp plr pls pmc pme pmg pmh pmi pml pmm pmo pmp pmr pms poc poe pog poh poi pol pom poo pop por pos ppc ppe ppg pph ppi ppl ppm ppo ppp ppr pps prc pre prg prh pri prl prm pro prp prr prs ps- psc pse psg psh psi psl psm pso psp psr pss rcc rce rcg rch rci rcl rcm rco rcp rcr rcs re- rec ree reg reh rei rel rem reo rep rer res rgc rge rgg rgh rgi rgo rgp rgr rgs rh- rhc rhe rhg rhh rhi rhl rhm rho rhp rhr rhs ric rie rig rih rii ril rim rio rip rir ris rlc rle rlg rlh rli rll rlm rlo rlp rlr rls rmc rme rmg rmh rmi rml rmm rmo rmp rmr rms roc roe rog roh roi rol rom roo rop ror ros rpc rpe rpg rph rpi rpl rpm rpo rpp rpr rps rrc rrg rrh rri rrl rrm rrp rrr rrs rsc rse rsg rsh rsi rsl rsm rso rsp rsr rss scc sce scg sch sci scl scm sco scp scr scs se- sec see seg seh sei sel sem seo sep ser ses sgc sge sgg sgh sgi sgl sgm sgo sgp sgr sgs sh- shc she shg shh shi shl shm sho shp shr shs sic sie sig sih sii sil sim sio sip sir sis slc sle slg slh sli sll slm slo slp slr sls smc sme smg smh smi sml smm smo smp smr sms soc soe sog soh soi sol som soo sop sor sos spc spe spg sph spi spl spm spo spp spr sps sr- src sre srg srh sri srl srm sro srp srr srs ss- ssc sse ssg ssh ssi ssl ssm sso ssp ssr sss