The Tuning Derby manual contains two graphics, on statements and prepared statements. Each has a .gif and a .jpg version.
The two statement graphics are named as follows:
The two prepared statement graphics are named as follows:
The .gif file name has "ts" instead of "st". However, the DITA source expects the file to be named "pstmt_os.gif", and the PDF and the one-page HTML file use pstmt_os.jpg.
The file ptsmt_os.gif needs to be renamed pstmt_os.gif.