-er -ic -up c-- ccc cce cci cck cco ccp ccr ccs ccu ce- cec cee cei cek ceo cep cer ces ceu ci- cic cie cii cik cio cip cir cis ciu ckc cki cko cks co- coc coe coi cok coo cop cor cos cou cpc cpe cpi cpk cpo cpp cpr cps cpu crc cre cri crk cro crp crr crs cru csc cse csi csk cso csp csr css csu cuc cue cui cuk cuo cup cur cus cuu ec- ecc ece eci eck eco ecr ecs ecu eec eee eek eeo eep eer ees eic eie eii eik eio eip eir eis eiu ekc eke eki eko ekp ekr eks eku eo- eoc eoe eoi eok eoo eop eor eos eou ep- epc epe epi epo epp epr eps epu erc ere eri erk ero erp err ers eru es- esc ese esi esk eso esp esr ess esu eu- euc eue eui eup eur eus icc ice ici ick ico icp icr ics icu ie- iec iee iei iek iep ier ies iic iie iii iio iip iir iis iiu ikc ike iki ikk iko ikr iks iku io- ioc ioe ioi ioo iop ior ios iou ipc ipe ipi ipo ipp ipr ips ipu ir- irc ire iri irk iro irp irr irs iru is- isc ise isi isk iso isp isr iss isu iu- iuc iue iui iup iur ius kcc kce kci kck kcp kcr kcs kcu ke- kec kee kei kek keo kep ker kes kic kie kii kik kio kip kir kis kiu kkc kke kki kkk kkp kkr kks kku koc koe koi kok koo kop kor kos kou kpc kpe kpi kpk kpo kpp kpr kps kpu krc kri krk kro krp krr krs kru ksc kse ksi ksk kso ksp ksr kss ksu kuc kue kui kuk kup kur kus kuu o-i oc- occ oci ock oco ocp ocr ocs ocu oec oee oei oeo oep oer oes oic oie oii oik oio oip oir ois oiu okc oke oki okk oko okp okr oks oku oo- ooc ooi ook ooo oop oor oos op- opc ope opi opk opo opp opr ops or- orc ore ori ork oro orp orr ors oru os- osc ose osi osk oso osp osr oss osu ou- ouc oue oui ouk ouo oup our ous p-p pcc pce pci pck pco pcp pcr pcs pcu pec pee pei pek peo pep per pes peu pic pie pii pik pio pip pir pis piu pkc pke pki pko pkp pkr pks pku poc poe poi pok poo pop por pos pou ppc ppe ppi ppk ppo ppp ppr pps ppu prc pre pri prk pro prp prr prs pru ps- psc pse psi psk pso psp psr pss psu puc pue pui puk pup pur pus puu rcc rce rci rco rcp rcr rcs rcu re- rec ree rei rek reo rep rer res reu ric rie rii rik rio rip rir ris rkc rke rkk rko rkp rks rku roc roe roi rok roo rop ror ros rou rpc rpe rpi rpk rpo rpp rpr rps rpu rrc rri rrk rrp rrr rrs rru rsc rse rsi rsk rso rsp rsr rss rsu ruc rue rui ruk ruo rup rur rus ruu scc sce sci sck sco scp scr scs scu se- sec see sei sek seo sep ser ses seu sic sie sii sik sio sip sir sis siu sk- skc ske ski skk sko skp skr sks sku soc soe soi sok soo sop sor sos sou spc spe spi spk spo spp spr sps spu sr- src sre sri srk sro srp srr srs ss- ssc sse ssi ssk sso ssp ssr sss ssu suc sue sui suk suo sup sur sus suu ucc uce uci uck uco ucp ucr ucs ucu uec uee uei uep uer ues uic uie uii uio uip uir uis uiu ukc uke uki ukk ukp ukr uku uoc uoe uok uoo uop uor uos up- upc upe upi upk upo upp upr ups upu ur- urc ure uri urk uro urp urr urs uru usc use usi usk uso usp usr uss usu uuc uue uur uus uuu