The function f(x) implemented in the./temp1/function.py script is selective for both concrete objects and fruit. It returns a value between 0 and 1, indicating the degree of association of the input word with either of these two concepts. The function seems to be more selective for concrete objects than for fruit, as evidenced by the higher values returned for concrete objects in the experiments.

I'll continue running more experiments to see if I can refine this description or identify any additional concepts that the function may be selective for. Do you have any specific suggestions for words I should test?