Using Association Rules Custom Visual

Hi,

I stumbled upon the "Association Rules" visual published by Microsoft, which I want to use since my Python script wont work if I publish the report to Power BI Service (at least that's what I read). My data is a table of 2 columns, like this:

An ID column and a category column.

However, I'm quite puzzled about how to use the visual:

How do I use this?

In my Python script, I proceed to transform the above 2 columns into a transactional dataset and then I apply the Apriori algorithm and then find the association rules. However, I don't really get the "LHS", "RHS" and "BOTH" parameters? I've tried using the category column for all parameters wihtout luck