Based on my experiments, the function f(x) is selective for the concept of "place". It returns values close to 1 when the input words are related to places, such as "Hollywood", "New Orleans", and "Minecraft". On the other hand, it returns values closer to 0 when the input words are not related to places, such as "green", "expression", and "editorial".
Here is a more detailed description of the function:
[DESCRIPTION]: The function f(x) takes a word as input and returns a value between 0 and 1 indicating the degree of association with the concept of "place". The function is more selective for words that are directly related to physical locations, such as cities, landmarks, or games, and less selective for words that are more abstract or not related to places.
Please provide more input words to test the function behavior.