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]: En el sistema parasimpatico
[EX A]: In the parasympathetic system

[EX Q]: El enlace fosfodiester
[EX A]: The phosphodiester bond

[EX Q]: Los antigenos T-independientes
[EX A]:
T-independent antigens