-er -ji eee eep eer ees eie eii eij eip eir eis eji ejp ep- epe epi epp epr eps ere eri erp err ers es- ese esi esp esr ess ie- iee iei iej iep ier ies iie iii iij iip iir iis ije iji ijs ipe ipi ipp ipr ips ir- ire iri irj irp irr irs is- ise isi isj isp isr iss j-i jee jei jej jep jer jes jie jii jij jip jir jis jjj jjp jjr jjs jpe jpi jpj jpp jpr jps jri jrp jrr jrs jse jsi jsj jsp jsr jss p-p pee pei pep per pes pie pii pij pip pir pis pji pjp pjs ppe ppi ppj ppp ppr pps pre pri prp prr prs ps- pse psi psj psp psr pss re- ree rei rep rer res rie rii rip rir ris rjp rjr rpe rpi rpp rpr rps rri rrp rrr rrs rse rsi rsj rsp rsr rss se- see sei sej sep ser ses sie sii sij sip sir sis sje sji sjj sjp sjr sjs spe spi spp spr sps sr- sre sri srj srp srr srs ss- sse ssi ssj ssp ssr sss