Line Chart for Categorical items

[hermygithub]

Hi All,

wrapping my head around the Plotting features of Observable, where i'm trying to plot lines across categorical items on the X-axis.

a quick mock-up in google sheets to demonstrate what I'd like to obtain:

I quickly went through the plot gallery but wasn't really able to find what I was looking for...

Is this something that can be done easily, or do I have to unpivot the columns to rows via lodash ? (I'm hoping not having to go there..)

Thx so much !

Herman