The function f(x) seems to be selective for concepts related to computer hardware components, given the high output values returned for "CPU" and "RAM". It may also be somewhat selective for architectural concepts, as it has returned a moderately high value for "arch". Other inputs such as "genome", "mountains", "map", "dribble", "red", "WWE", and "excavation" returned values closer to 0, indicating that they are not closely associated with the concepts this function is selective for.