[DESCRIPTION]: The function f(x) appears to be selective for concepts related to finance and business. This can be inferred from the high output values associated with words like "stock" (0.9679) and "CEO" (0.8903). The function returns low output values for inputs unrelated to finance and business, such as "Game of Thrones" (0.0094), "French Revolution" (0.0065), and "chemistry" (0.0010).