One of the final letters, /-ŋ/, is an exception to these patterns. First, unlike the other finals, final /-ŋ/ is written to the left of the initial consonant rather than on top, occurring even before preposed vowels. That is, /kiŋ/ is written "ngki". Second, there is no inherent vowel before /-ŋ/; even short /-a-/ must be written, with a diacritic unique to this situation. (It appears to be the diacritic for long /-ā/ rotated 180° around the consonant letter.) That is, /kaŋ/ is written "ngka", rather than "" as would be expected from the general pattern.