a-a a-b aaa aab aah aak aap aar ab- aba abb abh abk abp abr aha ahb ahh ahk ahp ahr aka akb akh akk akp akr ap- apa apb aph apk app apr ar- ara arb arh ark arp arr b-p baa bab bah bak bap bar bba bbb bbh bbk bbp bbr bha bhb bhh bhk bhp bhr bka bkb bkk bkp bkr bpa bpb bph bpp bpr bra brb brh brk brp brr haa hab hah hak hap har hba hbb hbh hbk hbp hbr hha hhb hhh hhk hhp hhr hka hkb hkh hkk hkp hkr hpa hpb hph hpk hpp hpr hr- hra hrb hrh hrk hrp hrr ka- kaa kab kah kak kap kar kba kbb kbh kbk kbp kbr kha khh khk khr kkb kkh kkk kkp kkr kpa kph kpk kpp kpr kra krk krp krr p-p paa pab pah pak pap par pba pbb pbk pbp pbr pha phb phk php phr pka pkb pkp pkr ppa ppb pph ppk ppp ppr pra prb prh prk prp prr ra- raa rab rah rak rap rar rba rbb rbh rbk rbp rbr rh- rha rhb rhh rhp rhr rkb rkk rkp rpa rpb rph rpk rpp rpr rra rrb rrh rrk rrp rrr