You will be given a definition of a task first, then some input of the task.
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].

This manuscript addresses an interesting solution based in machine learning techniques to classify spectra legacy data of the Hubble Space Telescope in order to publish the results and "good" spectra in Internet to scientific community. The manuscript is well-written and results are robust. Experiment is sound and the manuscript seems acceptable in the current form. The work can be short, but very interesting to the Infonor and JCC community. The main problem of the paper is that it is difficult to compare results for the classifiers utilized. A confusion matrix and parameters for each classifier could clarify results.
Output:
en