code: def createRandomObjectDescriptions(numObjects,
                                     numLocationsPerObject,
                                     featurePool=("A", "B", "C")):
    
    return dict(("Object %d" % i,
                 zip(xrange(numLocationsPerObject),
                     [random.choice(featurePool)
                      for _ in xrange(numLocationsPerObject)]))
                for i in xrange(1, numObjects + 1))
docs: Returns {"Object 1": [(0, "C"), (1, "B"), (2, "C"), ...],
             "Object 2": [(0, "C"), (1, "A"), (2, "B"), ...]}