From your example data, what you appear to be wanting to do is summarize your data so that keeping the other columns the same, you are aggregating the value column.
To do this, you can use a GroupBy node. Specify all of the columns except value as your Group columns on the “Groups” tab, and then choose the value column on the “Manual Aggregation” tab, and choose sum as the aggregation method.
You’ll probably want to opt to keep the original column name too
e.g.
I hope that helps. By the way, I’m assuming that all of your data is actually going to remain in consistent case between the input table and the required output. In your example, you had changes of case but I’m guessing that was just a quick draft rather than actually wanting a change of case.