Detailed Instructions: This task is about translating a given Spanish language sentence to English.
See one example below:
Problem: Leeuwenhoek y Huygens... ...fueron abuelos de la medicina moderna:
Solution: Leeuwenhoek and Huygens... ...are the grandfathers of much of modern medicine.
Explanation: This is a good example because the Spanish sentence has been translated correctly to English.

Problem: Y entonces el limite cuando x - este boligrafo, este boligrafo - el limite cuando x se acerca a 0 desde el lado negativo de 1 / x.
Solution:
And then the limit as x-- this pen, this pen-- the limit as x approaches 0 from the negative side of 1/x.