Each EQUEL statement generates one comment and a few lines of COBOL code. You may find that the preprocessor translates 50 lines of EQUEL into 200 lines of COBOL. This may result in confusion about line numbers when you debug the original source code. To facilitate debugging, a comment corresponding to the original EQUEL source precedes each group of COBOL statements associated with a particular statement. (A comment precedes only executable EQUEL statements.) Each comment is one line long and describes the file name, line number, and type of statement in the original source file.