-er -up a-a a-b a-i a-t aaa aab aae aai aap aar aat aau aav ab- aba abb abe abi abp abr abt abu abv aea aeb aee aei aep aer aet aeu aev ai- aia aib aie aii aip air ait aiu aiv ap- apa apb ape api app apr apt apu apv ar- ara arb are ari arp arr art aru arv at- ata atb ate ati atp atr att atu atv au- aua aub aue aui aup aur aut auv av- ava avb ave avi avp avr avt avu b-p b-u baa bab bae bai bap bar bat bau bav bba bbb bbe bbi bbp bbr bbt bbu be- bea beb bee bei bep ber bet beu bev bi- bia bib bie bii bip bir bit biu biv bpa bpb bpe bpi bpp bpr bpt bpu bpv bra brb bre bri brp brr brt bru brv bta btb bte bti btp btr btt btu btv bua bub bue bui bup bur but buu bva bvb bve bvi bvp bvr bvt bvu bvv eaa eab eae eai eap ear eat eau eav eba ebb ebe ebi ebp ebr ebt ebu ebv eea eeb eee eep eer eet eev eia eib eie eii eip eir eit eiu eiv ep- epa epb epe epi epp epr ept epu era erb ere eri erp err ert eru erv eta etb ete eti etp etr ett etu etv eu- eua eub eue eui eup eur eut euv eva evb eve evi evp evr evt evv i-v ia- iaa iab iae iai iap iar iat iau iav iba ibb ibe ibi ibp ibr ibt ibu ibv ie- iea iee iei iep ier iet iev iia iib iie iii iip iir iit iiu ipa ipb ipe ipi ipp ipr ipt ipu ipv ir- ira irb ire iri irp irr irt iru irv ita itb ite iti itp itt itu itv iu- iua iub iue iui iup iur iut iva ivb ive ivi ivp ivr ivt ivu ivv p-p paa pab pae pai pap par pat pau pav pba pbb pbe pbi pbp pbr pbt pbu pea peb pee pei pep per pet peu pev pia pib pie pii pip pir pit piu piv ppa ppb ppe ppi ppp ppr ppt ppu ppv pra prb pre pri prp prr prt pru prv pt- pta ptb pte pti ptp ptr ptt ptu ptv pua pub pue pui pup pur put puu pva pvb pve pvi pvp pvr pvt pvu pvv ra- raa rab rae rai rap rar rat rau rav rba rbb rbe rbi rbp rbr rbt rbu re- rea reb ree rei rep rer ret reu rev ria rib rie rii rip rir rit riv rpa rpb rpe rpi rpp rpr rpt rpu rpv rra rrb rri rrp rrr rrt rru rta rtb rte rti rtp rtr rtt rtu rtv rua rub rue rui rup rur rut ruu ruv rva rvb rve rvi rvp rvr rvt rvu rvv taa tab tae tai tap tar tat tau tav tba tbb tbe tbi tbp tbr tbt tbu tbv te- tea teb tee tei tep ter tet teu tev tia tib tie tii tip tir tit tiu tiv tpa tpb tpe tpi tpp tpr tpt tpu tpv tra trb tre tri trp trr trt tru trv tta ttb tte tti ttp ttr ttt ttu ttv tua tub tue tui tup tur tut tuu tuv tva tvb tve tvi tvp tvr tvt tvu ua- uaa uab uae uai uap uar uat uau uav uba ubb ube ubi ubp ubr ubt ubu ubv uea ueb uee uei uep uer uet uia uib uie uii uip uir uit uiu up- upa upb upe upi upp upr upt upu upv ur- ura urb ure uri urp urr urt uru uta utb ute uti utp utr utt utu utv uua uue uur uut uuu uva uvb uve uvu uvv v-a v-e vaa vab vae vai vap var vat vau vav vba vbi vbr vbv vea veb vee vei vep ver vet veu vi- via vib vie vii vip vir vit viu viv vpa vpb vpe vpi vpp vpr vpt vpu vra vrb vre vri vrp vrr vrt vru vta vtb vte vti vtr vtt vtu vtv vue vup vur vut vuv vva vvb vvi vvr vvt vvv