Not a native speaker, so I could be wrong about this:
I’ve seen a construction using proper nouns (eg. Annas Haus) where an “s” indicates possession, but no apostrophe. This doesn’t seem to apply to non-proper nouns (das Haus der Frau) and is different from normal genitive construction that adds an “s” to masc/neut noun genders (das Haus des Mannes)
Not a native speaker, so I could be wrong about this:
I’ve seen a construction using proper nouns (eg. Annas Haus) where an “s” indicates possession, but no apostrophe. This doesn’t seem to apply to non-proper nouns (das Haus der Frau) and is different from normal genitive construction that adds an “s” to masc/neut noun genders (das Haus des Mannes)