In this task, you are given a sentence in the Spanish language. Your task is to translate the Spanish sentence into the English language.

Example Input: ¿Para qué sirve la técnica de la flecha descendente en la terapia cognitiva de la depresión?
Example Output: What is the use of the descending arrow technique in the cognitive therapy of depression?

Example Input: Reva Rubin identifica la conducta materna después del parto en tres etapas
Example Output: Reva Rubin identifies maternal behavior after delivery in three stages

Example Input: La cromatografía de gases combinada con la espectrometría se masas (GC-MS) es la técnica cromatrográfica acoplada más empleada. La principal dificultad del acoplamiento está en
Example Output:
Gas chromatography combined with mass spectrometry (GC-MS) is the most commonly used chromatographic coupled technique. The main difficulty of the coupling is in