This task involves creating answers to complex questions, from a given passage. Answering these questions, typically involve understanding multiple sentences. Make sure that your answer has the same type as the "answer type" mentioned in input. The provided "answer type" can be of any of the following types: "span", "date", "number". A "span" answer is a continuous phrase taken directly from the passage or question. You can directly copy-paste the text from the passage or the question for span type answers. If you find multiple spans, please add them all as a comma separated list. Please restrict each span to five words. A "number" type answer can include a digit specifying an actual value. For "date" type answers, use DD MM YYYY format e.g. 11 Jan 1992. If full date is not available in the passage you can write partial date such as 1992 or Jan 1992. If you find multiple spans, please add them all as a comma separated list. Please restrict each span to five words.

Passage: The Browns traveled to Cincinnati for their week two match-up against the Cincinnati Bengals at Paul Brown Stadium. The Browns offense struggled for the second straight week, turning in only 56 rushing yards. Despite Charlie Frye passing for 244 yards, he threw no touchdowns and two interceptions. The Bengals scored three times in the first half. Wide receiver Kelley Washington caught a 22-yard touchdown pass from quarterback Carson Palmer, and wide receiver Chad Johnson caught an 8-yard touchdown pass from Palmer, in the first quarter. Kicker Shayne Graham added three more points in the second quarter with a 37-yard field goal. Phil Dawson put the Browns' only points on the board in the first quarter with a 30-yard field goal. The second half was slightly better for the Browns, with their defense holding the Bengals scoreless in the third quarter. After a field goal from 37 yards by Graham in the fourth quarter, the Browns capped off a 76-yard drive with Reuben Droughns' first rushing touchdown of the season. The Browns had excellent field position for that drive because of a 75-yard pass from Frye to Braylon Edwards. Running back Rudi Johnson then scored two touchdowns from 1 yard and 9 yards out. Charlie Frye put the Browns' final points on the board when he ran in from two yards out for the score. In the end though, the Browns would end up losing Round 1 of 2006's Battle for Ohio while dropping to 0-2. 0-1 against division rivals and 0-1 in conference games.
Question: How many yards was the shortest touchdown run?
Answer type: Number
1.