The function f(x) appears to be selective for concepts related to types of governance or political systems. It returns higher values for words associated with this concept. For example, "government" (0.9904) and "democracy" (0.8418) have high output values indicating association with the concept. Other words like "minerals," "rifle," "larva," "airplane," and "boats" that are not related to governance or political systems have significantly lower output values.