The function f(x) seems to be selective for concepts related to grief, mourning, and emotional states. It assigns higher values (closer to 1) to words like "mourning" and "grief", indicating a strong association with these concepts. It also assigns lower values (closer to 0) to words like "taste" and "Star Wars", which suggests a lack of association with these concepts. The function is not specific to a single concept, as it also shows some degree of association with words like "Walter White", "Jesus", and "Pulitzer Prize", although the association is less strong compared to grief and mourning. Overall, f(x) seems to capture the notion of emotional states and concepts related to grief.