Mapping Out Possession
In Danish, you can show possession by adding an -s to the end of a noun, just like in English (e.g., kortets midte - the map's center). However, it is also very common to use prepositions to link two nouns together. This is similar to saying "the center of the map" in English.
When talking about inanimate objects, maps, and geography, you will frequently rely on two prepositions to show these relationships: af and til.
Part-Whole Relationships with "af"
Use af (of) to describe a part or attribute of a greater whole. If you are pointing out the top, the middle, the size, or a piece of something, af is the preposition you need.
Association and Belonging with "til"
Use til (to, for, of) to describe an abstract relationship, belonging, or association between two things.
You use til when a noun is heavily associated with another noun, but isn't a direct part of it. This applies to concepts like your knowledge of an area, the scale of a map, or a coordinate for a specific location.
