A dictionary entry can supply a word and its hyphenation
and indicate if it is a negative word.
If it is a negative entry it may supply a replacement text to
be used instead of the entry word.
Hyphenation positions are represented by an "=" in the word.
If the "=" is the last character of the word this means it should not
be hyphenated. If there is no "=" charter in the word, hyphenation
positions will be determined automatically (i.e., from the hyphenator
service alone).
Entries whose words only differ in hyphenation are considered
to be equal. Also a "." at the end of the word will make no
difference.