TheXPath array call can be applied to anything that returns a list, e. g. the TradeItems in an article document or LookupValueItems (see example). \
It is important that the positions start at 1 and not 0 as usual.

Array['respective position]

The following rule applies to this CSV file:

LookUpValueItem[1]

Only the first element of the LookupValueItem array is selected in the ruleset.