A single comma can make all the difference

What follows is an item from the Style Invitational, published in the
Washington Post on July 17. Readers were asked to quote a sentence
from an earlier issue of the paper and supply a question to which it
might be the answer. The item speaks for itself:

A. A measure approved in a 298 to 221 vote by a national assembly
keeps in place a Presbyterian church law that says clergy, lay elders
and deacons must limit sexual relations to a man-woman marriage.

Q. What's a good example of how a single comma can make all the
difference?

--
Bob Lieblich
I told you commas were important
.