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:
during diagenesis the sediments may undergo ___ changes
answer:
physical


question:
a directive issued by a president or governor that has the force of law is known as
answer:
an executive order


question:
who is credited with saying markets can stay irrational longer than you can stay solvent
answer:

John Maynard Keynes