We've gathered some data, now let's analyze the patterns. Based on the input-output pairs, it seems that the function is selective for words related to emotions or feelings, particularly negative or solemn emotions. Words such as "mourning", "grief", "sad" and "failure" had higher values while words like "happy" and "friendship" had lower values. Other seemingly unrelated words had generally low values.

Given the diverse inputs we provided, let's describe the f(x) function:

[DESCRIPTION]: The function appears to be selective for words related to emotions, particularly negative or solemn emotions. Words with an association to these emotions receive higher values, while words unrelated to emotions or with positive emotional associations receive lower values.