operators: 
- id: load_math
  config:
    type: hf_source
    dataset: nvidia/OpenMathInstruct-2
    split: train
    trust_remote_code: True
- id: sample_dataset
  config:
    type: function
    function: data_strategies.commons.uniform_sample_limited
    function_config:
      num_samples: 1_000_000  # 1.25% of 10000 target from stage 1
  input_ids:
  - load_math
- id: rename_task_column
  config:
    type: function
    function: data_strategies.commons.force_rename_columns
    function_config:
      column_maps:
        expected_answer: response_seed
        problem: instruction_seed
  input_ids:
    - sample_dataset