a-a a-b a-i aaa aab aad aae aai aas aau ab- aba abb abd abe abi abs abu ad- ada adb add ade adi ads adu aea aeb aed aee aei aes aeu ai- aia aib aid aie aii ais aiu as- asa asb asd ase asi ass asu au- aua aub aud aue aui aus b-u baa bab bad bae bai bas bau bba bbb bbd bbe bbi bbs bbu bda bdb bdd bde bdi bds bdu be- bea beb bed bee bei bes beu bi- bia bib bid bie bii bis biu bsa bsb bsd bse bsi bss bsu bua bub bud bue bui bus buu daa dab dad dae dai das dau dba dbb dbd dbe dbi dbs dbu dda ddb ddd dde ddi dds ddu de- dea deb ded dee dei des deu di- dia dib did die dii dis diu dsa dsb dsd dse dsi dss dsu dua dub dud due dui dus eaa eab ead eae eai eas eau eba ebb ebd ebe ebi ebs ebu ed- eda edb edd ede edi eds edu eea eeb eed eee ees eia eib eid eie eii eis eiu es- esa esb esd ese esi ess esu eu- eua eub eud eue eui eus i-d ia- iaa iab iad iae iai ias iau iba ibb ibd ibe ibi ibs ibu ida idb idd ide idi ids idu ie- iea ied iee iei ies iia iib iid iie iii iis iiu is- isa isb isd ise isi iss isu iu- iua iub iud iue iui ius saa sab sad sae sai sas sau sba sbb sbd sbe sbi sbs sbu sda sdb sdd sde sdi sds sdu se- sea seb sed see sei ses seu sia sib sid sie sii sis siu ss- ssa ssb ssd sse ssi sss ssu sua sub sud sue sui sus suu ua- uaa uab uad uae uai uas uau uba ubb ube ubi ubs ubu uda udb udd ude udi uds udu uea ueb ued uee uei ues uia uib uid uie uii uis uiu usa usb usd use usi uss usu uua uue uus uuu