Based on the output from the function for the inputs "apple", "car", and "rain", it seems that the function is selectively associating words with certain concepts. In this case, it appears that the function is more strongly associated with the concept of "rain" compared to "apple" and "car". 

However, since the output values are quite low, it suggests that the function's association with these concepts is not very strong. 

Therefore, a possible description of the function could be: 
[DESCRIPTION]: The function is selective for the concept of "rain", but the association is not very strong.