Q: 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 Bengals' home opener was against the Chargers.  In the first quarter, Andy Dalton found A. J. Green on a 16-yard pass for a 7-0 lead.  The Chargers would later on score when Josh Lambo kicked a 40-yard field goal for a 7-3 game.  They drew closer in the second quarter, when Lambo kicked another field goal from 32 yards out for a 7-6 game.  The Bengals moved ahead by 8 when Andy Dalton found Marvin Jones on a 45-yard pass for a 14-6 game at halftime.  In the third quarter, the Chargers once again came within a point when Philip Rivers found Stevie Johnson on a 10-yard pass for a 14-13 game.  The Bengals pulled ahead by 4 when Mike Nugent kicked a 21-yard field goal for a 17-13 game.  In the fourth quarter, Dalton found Tyler Eifert on a 9-yard pass for a 24-13 lead.  The Chargers would come within 5 as Rivers found Malcolm Floyd on a 40-yard pass for a 24-19 game.  After pressuring the Bengals' offense, the Chargers got the ball back.  Though one of Rivers's comeback passes was picked off sealing the win for the Bengals. 
Question: How many yards was the longest touchdown pass of the first half? 
Answer type: Number 
A:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
45.