-er -up a-a a-b a-i a-t aaa aab aae aai aap aar aat aau ab- aba abb abe abi abp abr abt abu aea aeb aee aei aep aer aet aeu ai- aia aib aie aii aip air ait aiu ap- apa apb ape api app apr apt apu ar- ara arb are ari arp arr art aru at- ata atb ate ati atp atr att atu au- aua aub aue aui aup aur aut b-p b-u baa bab bae bai bap bar bat bau bba bbb bbe bbi bbp bbr bbt bbu be- bea beb bee bei bep ber bet beu bi- bia bib bie bii bip bir bit biu bpa bpb bpe bpi bpp bpr bpt bpu bra brb bre bri brp brr brt bru bta btb bte bti btp btr btt btu bua bub bue bui bup bur but buu eaa eab eae eai eap ear eat eau eba ebb ebe ebi ebp ebr ebt ebu eea eeb eee eep eer eet eia eib eie eii eip eir eit eiu ep- epa epb epe epi epp epr ept epu era erb ere eri erp err ert eru eta etb ete eti etp etr ett etu eu- eua eub eue eui eup eur eut ia- iaa iab iae iai iap iar iat iau iba ibb ibe ibi ibp ibr ibt ibu ie- iea iee iei iep ier iet iia iib iie iii iip iir iit iiu ipa ipb ipe ipi ipp ipr ipt ipu ir- ira irb ire iri irp irr irt iru ita itb ite iti itp itt itu iu- iua iub iue iui iup iur iut p-p paa pab pae pai pap par pat pau pba pbb pbe pbi pbp pbr pbt pbu pea peb pee pei pep per pet peu pia pib pie pii pip pir pit piu ppa ppb ppe ppi ppp ppr ppt ppu pra prb pre pri prp prr prt pru pt- pta ptb pte pti ptp ptr ptt ptu pua pub pue pui pup pur put puu ra- raa rab rae rai rap rar rat rau rba rbb rbe rbi rbp rbr rbt rbu re- rea reb ree rei rep rer ret reu ria rib rie rii rip rir rit rpa rpb rpe rpi rpp rpr rpt rpu rra rrb rri rrp rrr rrt rru rta rtb rte rti rtp rtr rtt rtu rua rub rue rui rup rur rut ruu taa tab tae tai tap tar tat tau tba tbb tbe tbi tbp tbr tbt tbu te- tea teb tee tei tep ter tet teu tia tib tie tii tip tir tit tiu tpa tpb tpe tpi tpp tpr tpt tpu tra trb tre tri trp trr trt tru tta ttb tte tti ttp ttr ttt ttu tua tub tue tui tup tur tut tuu ua- uaa uab uae uai uap uar uat uau uba ubb ube ubi ubp ubr ubt ubu uea ueb uee uei uep uer uet uia uib uie uii uip uir uit uiu up- upa upb upe upi upp upr upt upu ur- ura urb ure uri urp urr urt uru uta utb ute uti utp utr utt utu uua uue uur uut uuu