a-a a-b aaa aab aah aak aan aas ab- aba abb abh abk abn abs aha ahb ahh ahk ahn ahs aka akb akh akk akn aks an- ana anb anh ank ann ans as- asa asb ash ask asn ass baa bab bah bak ban bas bba bbb bbh bbk bbn bbs bha bhb bhh bhk bhs bka bkb bkk bkn bks bna bnb bnk bnn bns bsa bsb bsh bsk bsn bss haa hab hah hak han has hba hbb hbh hbk hbn hbs hha hhb hhh hhk hhn hhs hka hkb hkh hkk hkn hks hna hnb hnh hnk hnn hns hsa hsb hsh hsk hsn hss ka- kaa kab kah kak kan kas kba kbb kbh kbk kbn kbs kha khh khk khn khs kkb kkh kkk kkn kks kn- kna knk knn ksa ksb ksh ksk ksn kss naa nab nah nak nan nas nba nbb nbk nbn nbs nha nhb nhh nhk nhn nhs nka nkk nkn nks nna nnb nnh nnk nnn nns nsa nsb nsh nsk nsn nss saa sab sah sak san sas sba sbb sbh sbk sbn sbs sh- sha shb shh shk shn shs sk- ska skb skh skk sks sna snb snk snn sns ss- ssa ssb ssh ssk ssn sss