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: In a Thursday Night Football matchup, the Bengals defeated the Browns 31-10. Browns QB Johnny Manziel made his fourth career start and second of this season in place of the injured Josh McCown. The Browns received the ball first and punted after gaining only one first down. The Bengals scored a touchdown on their opening drive to take a 7-0 lead. The Browns reached the Bengals' 4 yard line, but they were unable to reach the end zone and settled for a field goal. The Bengals led 7-3 after the first quarter. The Bengals scored an early second quarter touchdown to go up 14-3. The Browns went 93 yards and scored a touchdown to cut the deficit to 14-10 heading into halftime. The Bengals dominated the second half as the Browns did not record a first down until the 3 minute mark of the 4th quarter and had only 2 first downs for the entire second half. The Bengals scored another touchdown to go up 24-10 early in the 4th quarter. The Browns went 3 and out again, and the Bengals scored another touchdown on their next drive to take a 31-10 lead. The Browns attempted to respond, but they could not gain a first down and punted again. The Browns blocked a Bengals' and had the ball at Cincinnati's 37 yard line. They had two first downs on the drive, but they failed to score a touchdown and turned the ball over on downs, allowing the Bengals to run out the clock.
Question: How many touchdowns were scored in the game?
Answer type: Number
4.