-er -ic -up a-a a-c a-i aaa aac aae aai aap aar aau ac- aca acc ace aci acp acr acu aea aec aee aei aep aer aeu ai- aia aic aie aii aip air aiu ap- apa apc ape api app apr apu ar- ara arc are ari arp arr aru au- aua auc aue aui aup aur c-- caa cac cae cai cap car cau cca ccc cce cci ccp ccr ccu ce- cea cec cee cei cep cer ceu ci- cia cic cie cii cip cir ciu cpa cpc cpe cpi cpp cpr cpu cra crc cre cri crp crr cru cua cuc cue cui cup cur cuu eaa eac eae eai eap ear eau ec- eca ecc ece eci ecr ecu eea eec eee eep eer eia eic eie eii eip eir eiu ep- epa epc epe epi epp epr epu era erc ere eri erp err eru eu- eua euc eue eui eup eur ia- iaa iac iae iai iap iar iau ica icc ice ici icp icr icu ie- iea iec iee iei iep ier iia iic iie iii iip iir iiu ipa ipc ipe ipi ipp ipr ipu ir- ira irc ire iri irp irr iru iu- iua iuc iue iui iup iur p-p paa pac pae pai pap par pau pca pcc pce pci pcp pcr pcu pea pec pee pei pep per peu pia pic pie pii pip pir piu ppa ppc ppe ppi ppp ppr ppu pra prc pre pri prp prr pru pua puc pue pui pup pur puu ra- raa rac rae rai rap rar rau rca rcc rce rci rcp rcr rcu re- rea rec ree rei rep rer reu ria ric rie rii rip rir rpa rpc rpe rpi rpp rpr rpu rra rrc rri rrp rrr rru rua ruc rue rui rup rur ruu ua- uaa uac uae uai uap uar uau uca ucc uce uci ucp ucr ucu uea uec uee uei uep uer uia uic uie uii uip uir uiu up- upa upc upe upi upp upr upu ur- ura urc ure uri urp urr uru uua uuc uue uur uuu