Detailed Instructions: 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.
Problem:Passage: The Vikings traveled to Green Bay in week 12 to face a Packers team missing quarterback Aaron Rodgers, who had suffered a fractured left collarbone three weeks earlier. After successive punts from each side started the game, the Packers were the first to score as backup QB Scott Tolzien ran in for a 6-yard touchdown, but two field goals from Blair Walsh and a 1-yard touchdown run for Adrian Peterson meant the Vikings took a 13-7 lead into halftime. They extended their lead midway through the third quarter as Christian Ponder hit tight end Rhett Ellison for a 12-yard touchdown, and Walsh made it a 16-point lead with a 29-yard field goal on the second play of the fourth quarter. The Packers pulled the struggling Tolzien after the Ellison touchdown and replaced him with the recently re-signed Matt Flynn. Flynn then led the Packers on three consecutive scoring drives in the fourth quarter, starting with a 3-yard touchdown run for Eddie Lacy. Flynn's pass to Andrew Quarless on the two-point attempt fell incomplete, but Flynn was able to find Jarrett Boykin for a 6-yard touchdown on the next drive to reduce the Vikings' lead to three points. Inside the two-minute warning, Flynn combined with James Jones for a 28-yard completion on 4th-and-6, setting up Mason Crosby for the game-tying, 27-yard field goal. The Packers won the overtime coin toss and took the opening possession down to the Minnesota 2-yard line before having to settle for a field goal, only for Walsh to respond with a 35-yard effort. The two sides then exchanged possession as neither was able to put together a significant drive and the game ended in a 26-26 tie.
Question: How many points were scored in the first half of the game?
Answer type: Number
Solution:
20.