In this task, You are given an open-domain question that can be answered based on factual information. Your task is to provide \*short\* answer (in a few words only) for the given question. The short answer can be one or more entities or it can also be boolean \*yes\* or \*no\*.

[Q]: when did they change pennies from copper to zinc
[A]: 1943


[Q]: where might new segments be added during growth in a polychaete worm
[A]: rear end


[Q]: who voices the tooth fairy in rise of the guardians
[A]:
Isla Fisher