-er -ic -up a-a a-b a-c a-i aaa aab aac aad aae aai aap aar aau ab- aba abb abc abd abe abi abp abr abu ac- aca acb acc acd ace aci acp acr acu ad- ada adb adc add ade adi adp adr adu aea aeb aec aed aee aei aep aer aeu ai- aia aib aic aid aie aii aip air aiu ap- apa apb apc apd ape api app apr apu ar- ara arb arc ard are ari arp arr aru au- aua aub auc aud aue aui aup aur b-p b-u baa bab bac bad bae bai bap bar bau bba bbb bbc bbd bbe bbi bbp bbr bbu bca bcb bcc bcd bce bci bcp bcr bcu bda bdb bdc bdd bde bdi bdp bdr bdu be- bea beb bec bed bee bei bep ber beu bi- bia bib bic bid bie bii bip bir biu bpa bpb bpc bpd bpe bpi bpp bpr bpu bra brb brd bre bri brp brr bru bua bub buc bud bue bui bup bur buu c-- caa cab cac cad cae cai cap car cau cba cbb cbc cbd cbe cbi cbp cbr cbu cca ccb ccc ccd cce cci ccp ccr ccu cda cdb cdc cdd cde cdi cdp cdr cdu ce- cea ceb cec ced cee cei cep cer ceu ci- cia cib cic cid cie cii cip cir ciu cpa cpb cpc cpd cpe cpi cpp cpr cpu cra crb crc crd cre cri crp crr cru cua cub cuc cud cue cui cup cur cuu daa dab dac dad dae dai dap dar dau dba dbb dbc dbd dbe dbi dbp dbr dbu dca dcb dcc dcd dce dci dcp dcr dcu dda ddb ddc ddd dde ddi ddp ddr ddu de- dea deb dec ded dee dei dep der deu di- dia dib dic did die dii dip dir diu dpa dpb dpc dpd dpe dpi dpp dpr dpu dra drb drc drd dre dri drp drr dru dua dub duc dud due dui dup dur eaa eab eac ead eae eai eap ear eau eba ebb ebc ebd ebe ebi ebp ebr ebu ec- eca ecb ecc ecd ece eci ecr ecu ed- eda edb edc edd ede edi edp edr edu eea eeb eec eed eee eep eer eia eib eic eid eie eii eip eir eiu ep- epa epb epc epd epe epi epp epr epu era erb erc erd ere eri erp err eru eu- eua eub euc eud eue eui eup eur i-d ia- iaa iab iac iad iae iai iap iar iau iba ibb ibc ibd ibe ibi ibp ibr ibu ica icb icc icd ice ici icp icr icu ida idb idc idd ide idi idp idr idu ie- iea iec ied iee iei iep ier iia iib iic iid iie iii iip iir iiu ipa ipb ipc ipd ipe ipi ipp ipr ipu ir- ira irb irc ird ire iri irp irr iru iu- iua iub iuc iud iue iui iup iur p-p paa pab pac pad pae pai pap par pau pba pbb pbc pbd pbe pbi pbp pbr pbu pca pcb pcc pcd pce pci pcp pcr pcu pda pdb pdc pdd pde pdi pdp pdr pdu pea peb pec ped pee pei pep per peu pia pib pic pid pie pii pip pir piu ppa ppb ppc ppd ppe ppi ppp ppr ppu pra prb prc prd pre pri prp prr pru pua pub puc pud pue pui pup pur puu ra- raa rab rac rad rae rai rap rar rau rba rbb rbc rbd rbe rbi rbp rbr rbu rca rcb rcc rcd rce rci rcp rcr rcu rda rdb rdc rdd rde rdi rdp rdr rdu re- rea reb rec red ree rei rep rer reu ria rib ric rid rie rii rip rir rpa rpb rpc rpd rpe rpi rpp rpr rpu rra rrb rrc rrd rri rrp rrr rru rua rub ruc rud rue rui rup rur ruu ua- uaa uab uac uad uae uai uap uar uau uba ubb ubc ube ubi ubp ubr ubu uca ucb ucc ucd uce uci ucp ucr ucu uda udb udc udd ude udi udp udr udu uea ueb uec ued uee uei uep uer uia uib uic uid uie uii uip uir uiu up- upa upb upc upd upe upi upp upr upu ur- ura urb urc urd ure uri urp urr uru uua uuc uue uur uuu