With a low-scoring road win over the Browns behind them, the Colts went home for a Week 14 game with the Cincinnati Bengals.  In the first quarter, Indy got the early lead as RB Dominic Rhodes got a 17-yard touchdown run.  The Bengals would answer in the second quarter with kicker Shayne Graham nailing a 19-yard field goal, yet Indianapolis replied with QB Peyton Manning completing a 5-yard TD pass to WR Marvin Harrison.  Manning would even deliver two third-quarter scores for the Colts, as he completed a 2-yard touchdown pass to wide receiver Anthony Gonzalez and a 4-yard touchdown pass to TE Dallas Clark.  Indianapolis closed out the game with CB Kelvin Hayden returning an interception 85&#160;yards for a touchdown.
Question: How many is the difference in the number of yards of the TD run by Rhodes and the TD pass caught by Gonzalez?
Answer: 15