-up a-a a-b a-i a-t aaa aab aai aap aar aat aau ab- aba abb abi abp abr abt abu ai- aia aib aii aip air ait aiu ap- apa apb api app apr apt apu ar- ara arb ari arp arr art aru at- ata atb ati atp atr att atu au- aua aub aui aup aur aut b-p b-u baa bab bai bap bar bat bau bba bbb bbi bbp bbr bbt bbu bi- bia bib bii bip bir bit biu bpa bpb bpi bpp bpr bpt bpu bra brb bri brp brr brt bru bta btb bti btp btr btt btu bua bub bui bup bur but buu ia- iaa iab iai iap iar iat iau iba ibb ibi ibp ibr ibt ibu iia iib iii iip iir iit iiu ipa ipb ipi ipp ipr ipt ipu ir- ira irb iri irp irr irt iru ita itb iti itp itt itu iu- iua iub iui iup iur iut p-p paa pab pai pap par pat pau pba pbb pbi pbp pbr pbt pbu pia pib pii pip pir pit piu ppa ppb ppi ppp ppr ppt ppu pra prb pri prp prr prt pru pt- pta ptb pti ptp ptr ptt ptu pua pub pui pup pur put puu ra- raa rab rai rap rar rat rau rba rbb rbi rbp rbr rbt rbu ria rib rii rip rir rit rpa rpb rpi rpp rpr rpt rpu rra rrb rri rrp rrr rrt rru rta rtb rti rtp rtr rtt rtu rua rub rui rup rur rut ruu taa tab tai tap tar tat tau tba tbb tbi tbp tbr tbt tbu tia tib tii tip tir tit tiu tpa tpb tpi tpp tpr tpt tpu tra trb tri trp trr trt tru tta ttb tti ttp ttr ttt ttu tua tub tui tup tur tut tuu ua- uaa uab uai uap uar uat uau uba ubb ubi ubp ubr ubt ubu uia uib uii uip uir uit uiu up- upa upb upi upp upr upt upu ur- ura urb uri urp urr urt uru uta utb uti utp utr utt utu uua uur uut uuu