procedure must be used before @cmd{BEGIN DATA} (@pxref{DATA LIST}).
@cmd{BEGIN DATA} and @cmd{END DATA} must be used together. @cmd{END
DATA} must appear by itself on a single line, with no leading
-whitespace and exactly one space between the words @code{END} and
-@code{DATA}, followed immediately by the terminal dot, like this:
+white space and exactly one space between the words @code{END} and
+@code{DATA}, like this:
@example
END DATA.