anchor.diff:  
               { 
                   "training": {
  -                    "datafile-id": "datafile-uuid",	
  +                    "datafile-id": "datafile-uuid", 
                       "split-percentage": 0.7
                   },
                   "testing": {
  -		    "datafile-id": "datafile-uuid",	
  +            "datafile-id": "datafile-uuid", 
                       "split-percentage": 0.3
                   }
               }
  
positive.code: 
              { 
                  "dataset-id": "<dataset-id>",
  		"specification-url": "http://s3.com/mnist_solver.prototxt",
                  "specification-net-url": "http://s3.com/mnist_train_test.prototxt"
              }
  
  
negative.code: 
      + Body
  
              { 
                  "input-url": "http://s3.com/image.png"
              }
  
  + Response 201 (application/json)
  
  