def fill_example(self, command, derivation, situation, target_commands,
                   verb_in_command, target_predicate, visualize, adverb,
                   location_prep, splits):
    """Add an example to the list of examples for the specified split."""
    example = super().fill_example(command, derivation, situation,
                                   target_commands, verb_in_command,
                                   target_predicate, visualize, adverb, splits)
    example["location_prep"] = location_prep
    return example
Add an example to the list of examples for the specified split.
language/gscan/data/dataset.py