Complex sentence: Vowels were the most common, but consonants could be placed above letters (rarely with ascenders), the most common being c. a cut l above an n meant nihil or words with nihil.
Split into simpler sentences: Vowels were the most common superscripts, but consonants could be placed above letters (rarely with ascenders), the most common being "c". A cut l above an n meant nihil or words with nihil.