hhh hhm hhn hho hhz hmh hmm hmo hmz hnh hnn hno hnz hoh hom hon hoo hzo m-o mhh mhm mhn mho mhz mmh mmm mmn mmo mmz mnm mnn mno mnz moh mom mon moo moz mzm mzn nhh nhm nhn nhz nmh nmm nmn nmo nmz nnh nnm nnn nno nnz no- noh nom non noo noz nzo nzz ohh ohm ohn oho om- omh omm omn omo omz on- onh onn ono oo- ooh oom oon ooo ozm ozo ozz zho zmm znn zno zo- zom zon zoo zzz