Oops, hit the "reply" button by accident when trying to dismiss a spelling correction on the iPad, and I do not know how to edit, due to my anti-procrastination setting. Intended was to compare:

  Foreach item in items

With

  Foreach datum in data

I also use itemss for a container of containers:

  Foreach items in itemss
    Foreach item in items

Of course, if the code is less generic, different names are more appropriate:

  Foreach row in matrix
    Foreach cell in row