The function f(x) appears to be selecting for words related to objects and their properties. It associates high scores with words that refer to concrete objects or their physical properties, such as "dog", "house", "tree", and "chair". It also associates high scores with words that refer to actions or activities that involve physical movement or manipulation of objects, such as "run", "jump", "swim", and "walk". On the other hand, it associates low scores with words that