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

El dolor opresivo/tirante, de ligera a moderada intensidad, de localización bilateral y que no empeora con la actividad física rutinaria, es el que ocurre en
The oppressive / tightening pain, of light to moderate intensity, of bilateral localization and that does not worsen with routine physical activity, is what occurs in

Con respecto a la actividad farmacológica de la artemisinina (lactona sesquiterpénica) extraída de la Artemisia annua
With respect to the pharmacological activity of artemisinin (sesquiterpene lactone) extracted from Artemisia annua

En eucariotas, los intrones del grupo II están en genes

In eukaryotes, group II introns are in genes