Given the task definition, example input & output, solve the new input case.
In this task, you are given a paper review. Based on the review, your job is to identify language and generate "en" if the review is in English or generate "es" if the review is in Spanish. Note that URLs in the text have been replaced with [Link].
Example: Este articulo no es un articulo de investigacion, ya que solo muestra como programar un robot mediante la herramienta de logica difusa. Este tema ya ha sido propuesto como solucion en navegacion de robots.
Output: es
This review is written in spanish. Hence, the label is 'es'.

New input case for you: The idea of building a graph-based differentiable memory is very good. The proposed approach is quite complex, but it is likely to lead to future developments and extensions. The paper has been much improved since the original submission. The results could be strengthened, with more comparisons to existing results on bAbI and baselines on the experiments here. Exploring how it performs with less supervision, and different types of supervision, from entirely labeled graphs versus just node labels, would be valuable.
Output:
en