The function seems to be selective for the concept of "sickness". It assigns a high value close to 1 for words related to illness or disease, such as "sickness". On the other hand, it assigns low values close to 0 for words unrelated to sickness, such as "Beverly Hills" or "television". The function may also have some selectivity for the concepts of "genome" and "deadly", as indicated by their respective non-zero values, but it is not as strong as the selectivity for "sickness". Overall, the function appears to be focused on identifying words related to illness or disease.