A silent h indicates the vowel length in certain cases.
There is clearly at least a two-way contrast in vowel length.
Vowel length is phonemic and plays an important role in the language.
Speakers who do not have raising cannot distinguish between these two words based on vowel length alone.
Vowel length is not distinguished - all vowels are short.
Vowel length and quality is independent of the stress.
Later, it developed into the acute accent, which is still used in some languages to mark vowel length.
Vowel length can be marked with a macron; however, this is not always done.
The language may have had a distinction of vowel length, but this is difficult to determine from the extant data.
As described above, vowel length was dependent on syllable structure.