a-a a-b aaa aab aad aah aau aav ab- aba abb abd abh abu abv ad- ada adb add adh adu adv aha ahb ahd ahh ahu ahv au- aua aub aud auh auv av- ava avb avd avh avu b-u baa bab bad bah bau bav bba bbb bbd bbh bbu bda bdb bdd bdh bdu bdv bha bhb bhd bhh bhu bhv bua bub bud buh buu bva bvb bvd bvh bvu bvv daa dab dad dah dau dav dba dbb dbd dbh dbu dbv dda ddb ddd ddh ddu dh- dha dhb dhd dhh dhu dua dub dud duh duv dva dvb dvd dvh dvu haa hab had hah hau hav hba hbb hbd hbh hbu hbv hda hdb hdd hdh hdu hdv hha hhb hhd hhh hhu hhv hua hub hud huh huu huv hv- hva hvb hvd hvv ua- uaa uab uad uah uau uav uba ubb ubh ubu ubv uda udb udd udu udv uha uhb uhd uhh uhu uhv uua uuu uva uvb uvu uvv v-a vaa vab vad vah vau vav vba vbd vbh vbv vdb vdd vdh vdu vdv vh- vha vhb vhd vuv vva vvb vvv