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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def output_reduce_list(path_list, force=False):
 """Generates structure file with protons from a list of structure files."""

    output_paths = []
    for path in path_list:
        output_path = output_reduce(path, force=force)
        if output_path:
            output_paths.append(output_path)
    return output_paths