a-a aaa aap aar aas aaw ap- apa app apr aps apw ar- ara arp arr ars arw as- asa asp asr ass asw aw- awa awp awr aws aww p-p paa pap par pas paw ppa ppp ppr pps ppw pra prp prr prs prw ps- psa psp psr pss psw pwa pwp pwr pws ra- raa rap rar ras raw rpa rpp rpr rps rpw rra rrp rrr rrs rsa rsp rsr rss rsw rwa rwr rws saa sap sar sas saw spa spp spr sps spw sr- sra srp srr srs srw ss- ssa ssp ssr sss ssw swa swp swr sws waa wap war was waw wpa wpp wpr wps wr- wra wrp wrr wrs wrw wsa wsp wsr wss wsw wwa wwp www