Based on the given tests, the function f(x) appears to be selective for concepts related to architecture, art, and famous landmarks. High-scoring words include "Louvre", "classical", "blueprint", and "Empire State Building", while others like "dribble", "queen", "weather", and "money" receive low scores. The additional tests demonstrate a preference for architectural and artistic concepts above others, such as "piano" and "rocket", while terms unrelated to these concepts get low scores.