The function seems to measure the association of a word with a particular concept. The concept it is selective for is primarily related to literature and entertainment. Words like "Crime and Punishment" and "Star Wars" have high values close to 1, indicating a strong association with this concept. On the other hand, words like "highway" and "government" have low values closer to 0, indicating a weak association. The function also seems to have some association with abstract concepts, as seen with words like "grief" and "lens" having moderate values. Overall, f(x) appears to be selective for a concept related to literature, entertainment, and possibly abstract ideas.