a-a a-b a-i aaa aab aad aai aar aas aau aav ab- aba abb abd abi abr abs abu abv ad- ada adb add adi adr ads adu adv ai- aia aib aid aii air ais aiu aiv ar- ara arb ard ari arr ars aru arv as- asa asb asd asi asr ass asu asv au- aua aub aud aui aur aus auv av- ava avb avd avi avr avs avu b-u baa bab bad bai bar bas bau bav bba bbb bbd bbi bbr bbs bbu bda bdb bdd bdi bdr bds bdu bdv bi- bia bib bid bii bir bis biu biv bra brb brd bri brr brs bru brv bsa bsb bsd bsi bsr bss bsu bsv bua bub bud bui bur bus buu bva bvb bvd bvi bvr bvs bvu bvv daa dab dad dai dar das dau dav dba dbb dbd dbi dbr dbs dbu dbv dda ddb ddd ddi ddr dds ddu di- dia dib did dii dir dis diu div dra drb drd dri drr drs dru drv dsa dsb dsd dsi dsr dss dsu dsv dua dub dud dui dur dus duv dva dvb dvd dvi dvr dvs dvu i-d i-v ia- iaa iab iad iai iar ias iau iav iba ibb ibd ibi ibr ibs ibu ibv ida idb idd idi idr ids idu idv iia iib iid iii iir iis iiu ir- ira irb ird iri irr irs iru irv is- isa isb isd isi isr iss isu isv iu- iua iub iud iui iur ius iva ivb ivd ivi ivr ivs ivu ivv ra- raa rab rad rai rar ras rau rav rba rbb rbd rbi rbr rbs rbu rda rdb rdd rdi rdr rds rdu rdv ria rib rid rii rir ris riv rra rrb rrd rri rrr rrs rru rsa rsb rsd rsi rsr rss rsu rsv rua rub rud rui rur rus ruu ruv rva rvb rvd rvi rvr rvs rvu rvv saa sab sad sai sar sas sau sav sba sbb sbd sbi sbr sbs sbu sbv sda sdb sdd sdi sdr sds sdu sdv sia sib sid sii sir sis siu siv sr- sra srb srd sri srr srs srv ss- ssa ssb ssd ssi ssr sss ssu ssv sua sub sud sui sur sus suu suv sva svb svd svi svr svs svu svv ua- uaa uab uad uai uar uas uau uav uba ubb ubi ubr ubs ubu ubv uda udb udd udi udr uds udu udv uia uib uid uii uir uis uiu ur- ura urb urd uri urr urs uru usa usb usd usi usr uss usu usv uua uur uus uuu uva uvb uvs uvu uvv v-a vaa vab vad vai var vas vau vav vba vbd vbi vbr vbs vbv vdb vdd vdi vdr vds vdu vdv vi- via vib vid vii vir vis viu viv vra vrb vrd vri vrr vrs vru vsa vsb vsd vsi vsr vss vsu vsv vur vus vuv vva vvb vvi vvr vvs vvv