Use column 1 through 71. Do not use columns 72-80, because the
system ignores these columns.
Comments may appear in columns 1-71 and must begin with "/*" and
end with "*/".
A statement type consists of 1-10 characters.
A statement must begin with a valid statement type followed by
at least one blank.
A statement ends with the beginning of the next valid statement
type or End Of File (EOF).
A statement can be continued even though there is no explicit
continuation character.
Multiple occurrences of a statement type are accepted.
A statement contains only uppercase characters. Lower case is
not accepted.
Operands must be separated by valid delimiters. Valid delimiters
are a comma, a blank, or column 71.
Multiple occurrences of a delimiter are accepted but treated as
one.
Keyword values must be set off by parenthesis.
Do not use blanks, commas, or comments in the middle of a parameter,
between the parameter and the left parenthesis before the value, or
in the middle of a value.