-er -up a-a a-b a-i aaa aab aad aae aai aap aar aau ab- aba abb abd abe abi abp abr abu ad- ada adb add ade adi adp adr adu aea aeb aed aee aei aep aer aeu ai- aia aib aid aie aii aip air aiu ap- apa apb apd ape api app apr apu ar- ara arb ard are ari arp arr aru au- aua aub aud aue aui aup aur b-p b-u baa bab bad bae bai bap bar bau bba bbb bbd bbe bbi bbp bbr bbu bda bdb bdd bde bdi bdp bdr bdu be- bea beb bed bee bei bep ber beu bi- bia bib bid bie bii bip bir biu bpa bpb bpd bpe bpi bpp bpr bpu bra brb brd bre bri brp brr bru bua bub bud bue bui bup bur buu daa dab dad dae dai dap dar dau dba dbb dbd dbe dbi dbp dbr dbu dda ddb ddd dde ddi ddp ddr ddu de- dea deb ded dee dei dep der deu di- dia dib did die dii dip dir diu dpa dpb dpd dpe dpi dpp dpr dpu dra drb drd dre dri drp drr dru dua dub dud due dui dup dur eaa eab ead eae eai eap ear eau eba ebb ebd ebe ebi ebp ebr ebu ed- eda edb edd ede edi edp edr edu eea eeb eed eee eep eer eia eib eid eie eii eip eir eiu ep- epa epb epd epe epi epp epr epu era erb erd ere eri erp err eru eu- eua eub eud eue eui eup eur i-d ia- iaa iab iad iae iai iap iar iau iba ibb ibd ibe ibi ibp ibr ibu ida idb idd ide idi idp idr idu ie- iea ied iee iei iep ier iia iib iid iie iii iip iir iiu ipa ipb ipd ipe ipi ipp ipr ipu ir- ira irb ird ire iri irp irr iru iu- iua iub iud iue iui iup iur p-p paa pab pad pae pai pap par pau pba pbb pbd pbe pbi pbp pbr pbu pda pdb pdd pde pdi pdp pdr pdu pea peb ped pee pei pep per peu pia pib pid pie pii pip pir piu ppa ppb ppd ppe ppi ppp ppr ppu pra prb prd pre pri prp prr pru pua pub pud pue pui pup pur puu ra- raa rab rad rae rai rap rar rau rba rbb rbd rbe rbi rbp rbr rbu rda rdb rdd rde rdi rdp rdr rdu re- rea reb red ree rei rep rer reu ria rib rid rie rii rip rir rpa rpb rpd rpe rpi rpp rpr rpu rra rrb rrd rri rrp rrr rru rua rub rud rue rui rup rur ruu ua- uaa uab uad uae uai uap uar uau uba ubb ube ubi ubp ubr ubu uda udb udd ude udi udp udr udu uea ueb ued uee uei uep uer uia uib uid uie uii uip uir uiu up- upa upb upd upe upi upp upr upu ur- ura urb urd ure uri urp urr uru uua uue uur uuu