From this experiment, we can observe that the function assigns similar values to the words "book", "pen", "calculator", and "computer". This suggests that the function may not be selective for any specific concept related to these word inputs.

Based on the experiments conducted so far, we can describe the function implemented by f(x) as follows:

[DESCRIPTION]: The function assigns a numerical value between 0 and 1 to word inputs, indicating the strength of association with certain concepts. It appears to be selective for concepts related to peace and war, as indicated by higher values assigned to words like "peace" and "war". Additionally, the function seems to have a preference for colors, as demonstrated by higher values assigned to color words. However, it does not exhibit strong selectivity for artistic forms or everyday objects.

Please note that further experiments may be needed to fully understand and accurately describe the function's behavior.