German Hyphanation in Pages 5.5.3

The German language version of Pages (actually 5.5.3 but also the versions before) has some strange entries to hyphanate words. E.g. Marktstäde spelled Markt ~ stände is syllabicated to Mark ~ tstände. But this is only one out of al long, long list.

How can I change the incorrect entries?

The .plist file mentioned for versions arround 2008/09 does not longer exist at the directory mentioned in solutions.

Thanks for any idea to fix this!

sunny