In this task, you get an English sentence and a corresponding Spanish translation of the English sentence. Your task is to return a "Yes" if the translation is correct, otherwise return "No"

Q: English: I believe a vaccine should not be used for preventative purposes as suggested in Amendment No 4.
Spanish:Debilitaria el control que hoy tienen del mismo.

A: No
****
Q: English: True, we are now given the beginning of such a power in this new system.
Spanish:Si bien es cierto que este nuevo sistema nos concede cierto poder.

A: Yes
****
Q: English: But early reports suggest that the poisoning of the Lepos, Tisza, Somes and Danube Rivers is a very serious environmental tragedy.
Spanish:Pero los primeros informes sugieren que la contaminacion de los rios Lepos, Tisza, Somes y Danubio constituye una tragedia medioambiental.

A:
Yes
****