b-u bbb bbh bbq bbr bbs bbu bhb bhh bhq bhr bhs bhu brb brh brq brr brs bru bsb bsh bsr bss bsu bub buh bur bus buu hbb hbh hbr hbs hbu hhb hhh hhr hhs hhu hqs hr- hrb hrh hrr hrs hru hsb hsh hsq hsr hss hsu hub huh huq hur hus huu qbq qbs qhs qqq qqu qrb qrh qrs qru qsr qu- quh qur qus rbb rbh rbr rbs rbu rh- rhb rhh rhr rhs rhu rqs rrb rrh rrq rrr rrs rru rsb rsh rsq rsr rss rsu rub ruh rur rus ruu sbb sbh sbq sbr sbs sbu sh- shb shh shr shs shu sqq sqr sqs sr- srb srh srq srr srs ss- ssb ssh ssq ssr sss ssu sub suh suq sur sus suu ubb ubh ubr ubs ubu uhb uhh uhq uhr uhs uhu ur- urb urr urs uru usb ush usr uss usu uur uus uuu