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The Oxford comma's
is from Oxford University. In the USA, it is called the serial comma. It is used before the
"and" or "or" in a
of three or more
. Many people say an Oxford comma is unnecessary on the 50-pence coin because the meaning is very
. A word expert said the Oxford comma is useful if it is
to understand the writer's
. A U.K. citizen said the comma wasn't
. She tweeted: "It doesn't matter if there is a comma or
on the 50p coin. The most important thing is that there is peace, and prosperity, and friendship with all
."
