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Description: Tutorial exercise for Week 2nnAttributions(ordered by appearance):nBackground - By anarchosyn - http://www.flickr.com/photos/24293932@N00/2707596343/sizes/l/nLicense for the above listed image - http://creativecommons.org/licenses/by-sa/3.0/nnGirl - By mikebaird - http://www.flickr.com/photos/mikebaird/2678307443/sizes/o/nLicense for the above listed image - http://creativecommons.org/licenses/by/3.0/nnGuy1 - By Anirudh Koul - http://www.flickr.com/photos/anirudhkoul/2523651888/sizes/l/nLicense