text: """Run an experiment on the value of features"""
  import sys
  from common import run_training, DEFAULT
  from features import features_by_name
  
  if len(sys.argv) < 2:
      print("Please specify which feature to add")
      sys.exit(1)
  
  ARGS = DEFAULT
  ARGS["experiment_name"] = f"extra_features_{'+'.join(sys.argv[1:])}"
  ARGS["features"] = ARGS["features"] + [
      features_by_name()[name] for name in sys.argv[1:]
  ]
  run_training(**ARGS)
  