Based on the input-output pairs you provided, the function f(x) appears to be selective for words related to mathematics and science. The output values are all relatively low, indicating a weak association with these concepts.
Here is a description of the function:
[DESCRIPTION]: The function f(x) is weakly selective for words related to mathematics and science, such as "word1", "word2", and "word3". The output values are all relatively low, indicating a weak association with these concepts.