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.
Q: Passage: On July 24, 2017, Gasol re-signed with the Spurs. On December 20, 2017, he had 20 points and a season-high 17 rebounds in a 93-91 win over the Portland Trail Blazers. On December 23, 2017, he recorded his 10th career triple-double with 14 points, 11 rebounds and a season-high 10 assists in a 108-99 win over the Sacramento Kings. On December 26, 2017, in a 109-97 win over the Brooklyn Nets, Gasol collected his 10,817th rebound, moving him past Jack Sikma for 30th in league history. On January 26, 2018, in a 97-78 loss to the Philadelphia 76ers, Gasol became the 34th player in NBA history to play 40,000 career minutes. On March 25, 2018, he had 22 points on 10-of-15 shooting and grabbed 13 rebounds in a 106-103 loss to the Milwaukee Bucks.
Question: How many points did the Spurs win by against Portland on December 20, 2017?
Answer type: Number
A:
2.