Great! Based on the outputs you provided, it appears that the function is selective for words related to the concept of "animals". The output for the word "word1" is 0.0496, which is relatively high compared to the other outputs. This suggests that the function is more likely to associate the word "word1" with the concept of "animals".

Additionally, the output for the word "word3" is 0.0685, which is also relatively high. This suggests that the function may also be selective for words related to the concept of "nature" or "outdoors".

Here is my initial description of the function:

[DESCRIPTION]: The function f(x) is selective for words related to the concept of "animals" and possibly "nature" or "outdoors". The function outputs a value between 0 and 1, indicating the degree of association between the input word and the concept.

Please provide more input words for me to test and I will continue to refine my description of the function.