instruction:
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\*.
question:
unix command for copying a file from a directory to another
answer:
cp


question:
when did banks stop printing their own money
answer:
1930s


question:
when did they stop making all silver half dollars
answer:

1970