In Step 3 - relations - use also label from the classification in Step 1

[tomas-knap]

In Step 3, currently we use labels from original CSV file (for the columns). But it would make sense to also show labels for the classes being associated with the columns in Step 1

[tomas-knap]

Do not know if there is time for that.

Also it is then not completely clear where to put such alternative labels.

I would suggest to postpone