Based on the provided input-output pairs from the diverse set of words, it seems that the function f(x) is more selective for concepts related to abstract, human-oriented, and societal topics rather than concrete or physical objects. However, the selectivity is not high as the maximum value is still quite low (0.0706). 

[DESCRIPTION]: The function takes word inputs and returns a value closer to 1 for concepts related to abstract, human-oriented, and societal topics. The selectivity for these concepts isn't very strong, with values generally staying below 0.1.