Based on the experiments I ran with the given inputs, it seems like the function implemented by f(x) is selective for words that are associated with food or objects found in a kitchen. The function assigns higher values (closer to 1) to inputs like "apple", "banana", "carrot", and "desk", which are all related to food or kitchen items. However, it's important to note that the function also assigns low values (closer to 0) to inputs like "elephant" that are unrelated to food or kitchen items.

Therefore, the description of the function implemented by f(x) is:

[DESCRIPTION]: The function selectively assigns higher values to words that are associated with food or objects found in a kitchen, while assigning lower values to unrelated words.