Column 1 of the presentation rules table uses a shorthand notation to describe the sequence of LINE NUMBER clauses that can appear in the description of a report group. The meaning of the abbreviations used in column 1 is as follows.
This entry can appear without a line number.
When two abbreviations appear together, they refer to a sequence of LINE NUMBER clauses that consists of the two specified consecutive sequences. For example "A R" refers to a report group description entry within which the "A" sequence (defined in rule 1 above) is immediately followed by the "R" sequence (defined in rule 2 above).