a-a aaa aad aap aas aav ad- ada add adp ads adv ap- apa apd app aps apv as- asa asd asp ass asv av- ava avd avp avs daa dad dap das dav dda ddd ddp dds dpa dpd dpp dps dpv dsa dsd dsp dss dsv dva dvd dvp dvs p-p paa pad pap pas pav pda pdd pdp pds pdv ppa ppd ppp pps ppv ps- psa psd psp pss psv pva pvd pvp pvs pvv saa sad sap sas sav sda sdd sdp sds sdv spa spd spp sps spv ss- ssa ssd ssp sss ssv sva svd svp svs svv v-a vaa vad vap vas vav vdd vdp vds vdv vpa vpd vpp vps vsa vsd vsp vss vsv vva vvs vvv