The function f(x) appears to be selective for concepts related to specific categories. It assigns higher values (closer to 1) to words that are strongly associated with the concept it represents. 

By observing the outputs, we can see that the word "genome" has a value of 0.9958, indicating a strong association with a specific concept. Similarly, the word "cells" also has a high value of 0.9900, suggesting a strong association with a different concept.

On the other hand, words like "WWE" and "The Godfather" have much lower values, indicating a weak association with the concept.

From these results, it seems that f(x) is selective for different concepts and can identify words that are closely related to those concepts. The specific concepts addressed by f(x) can only be determined by further experimentation with additional word inputs.