-er -ic -up a-a a-b a-c a-i a-t aaa aab aac aae aai aap aar aat aau ab- aba abb abc abe abi abp abr abt abu ac- aca acb acc ace aci acp acr act acu aea aeb aec aee aei aep aer aet aeu ai- aia aib aic aie aii aip air ait aiu ap- apa apb apc ape api app apr apt apu ar- ara arb arc are ari arp arr art aru at- ata atb atc ate ati atp atr att atu au- aua aub auc aue aui aup aur aut b-p b-u baa bab bac bae bai bap bar bat bau bba bbb bbc bbe bbi bbp bbr bbt bbu bca bcb bcc bce bci bcp bcr bct bcu be- bea beb bec bee bei bep ber bet beu bi- bia bib bic bie bii bip bir bit biu bpa bpb bpc bpe bpi bpp bpr bpt bpu bra brb bre bri brp brr brt bru bta btb btc bte bti btp btr btt btu bua bub buc bue bui bup bur but buu c-- caa cab cac cae cai cap car cat cau cba cbb cbc cbe cbi cbp cbr cbt cbu cca ccb ccc cce cci ccp ccr cct ccu ce- cea ceb cec cee cei cep cer cet ceu ci- cia cib cic cie cii cip cir cit ciu cpa cpb cpc cpe cpi cpp cpr cpt cpu cra crb crc cre cri crp crr crt cru cta ctb ctc cte cti ctp ctr ctt ctu cua cub cuc cue cui cup cur cut cuu eaa eab eac eae eai eap ear eat eau eba ebb ebc ebe ebi ebp ebr ebt ebu ec- eca ecb ecc ece eci ecr ect ecu eea eeb eec eee eep eer eet eia eib eic eie eii eip eir eit eiu ep- epa epb epc epe epi epp epr ept epu era erb erc ere eri erp err ert eru eta etb etc ete eti etp etr ett etu eu- eua eub euc eue eui eup eur eut ia- iaa iab iac iae iai iap iar iat iau iba ibb ibc ibe ibi ibp ibr ibt ibu ica icb icc ice ici icp icr ict icu ie- iea iec iee iei iep ier iet iia iib iic iie iii iip iir iit iiu ipa ipb ipc ipe ipi ipp ipr ipt ipu ir- ira irb irc ire iri irp irr irt iru ita itb itc ite iti itp itt itu iu- iua iub iuc iue iui iup iur iut p-p paa pab pac pae pai pap par pat pau pba pbb pbc pbe pbi pbp pbr pbt pbu pca pcb pcc pce pci pcp pcr pct pcu pea peb pec pee pei pep per pet peu pia pib pic pie pii pip pir pit piu ppa ppb ppc ppe ppi ppp ppr ppt ppu pra prb prc pre pri prp prr prt pru pt- pta ptb ptc pte pti ptp ptr ptt ptu pua pub puc pue pui pup pur put puu ra- raa rab rac rae rai rap rar rat rau rba rbb rbc rbe rbi rbp rbr rbt rbu rca rcb rcc rce rci rcp rcr rct rcu re- rea reb rec ree rei rep rer ret reu ria rib ric rie rii rip rir rit rpa rpb rpc rpe rpi rpp rpr rpt rpu rra rrb rrc rri rrp rrr rrt rru rta rtb rtc rte rti rtp rtr rtt rtu rua rub ruc rue rui rup rur rut ruu taa tab tac tae tai tap tar tat tau tba tbb tbc tbe tbi tbp tbr tbt tbu tca tcb tcc tce tci tcp tcr tct tcu te- tea teb tec tee tei tep ter tet teu tia tib tic tie tii tip tir tit tiu tpa tpb tpc tpe tpi tpp tpr tpt tpu tra trb trc tre tri trp trr trt tru tta ttb ttc tte tti ttp ttr ttt ttu tua tub tuc tue tui tup tur tut tuu ua- uaa uab uac uae uai uap uar uat uau uba ubb ubc ube ubi ubp ubr ubt ubu uca ucb ucc uce uci ucp ucr uct ucu uea ueb uec uee uei uep uer uet uia uib uic uie uii uip uir uit uiu up- upa upb upc upe upi upp upr upt upu ur- ura urb urc ure uri urp urr urt uru uta utb utc ute uti utp utr utt utu uua uuc uue uur uut uuu