Combining multiple maps into a single one?

[Chris Schneider <ch...@christopher-schneider.com>]

I am using Pig for the first time, and have found myself dealing with data
that is a bag containing single element maps.

{ [a#1], [b#2], [c#3] }

I'd like to join all the maps, and flatten away the bag, but I can't seem
to figure out how.

The desired output would be:

[a#1, b#2, c#3]

How can I go about that transformation?