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

[EX Q]: La causa más frecuente de ceguera irreversible en mayores de 60 años es
[EX A]: The most frequent cause of irreversible blindness in people over 60 is

[EX Q]: El número de nodos del LUMO (orbital desocupado de menor energía) del 1,3-butadieno es
[EX A]: The number of nodes of the LUMO (unoccupied orbital of lower energy) of 1,3-butadiene is

[EX Q]: El sistema gastrointestinal libera una hormona peptídica que aumenta durante el ayuno y disminuye tras la ingesta, denominada
[EX A]:
The gastrointestinal system releases a peptide hormone that increases during fasting and decreases after ingestion, called