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 week 7, the Lions hosted the Washington Redskins. After a scoreless first quarter, each team scored only a field goal in the second quarter: first Detroit's Matt Prater from 43 yards, then Washington's Dustin Hopkins from 38 yards, to tie the game at three points apiece at halftime. The only score of the third quarter was a one-yard touchdown run by the Lions' Zach Zenner. The Lions extended their lead in the fourth quarter via a 27-yard field goal from Prater. The Redskins responded with 14 consecutive points on a pair of touchdowns, first with a one-yard pass from Kirk Cousins to Robert Kelley, and next on a 19-yard run by Cousins. This give the Redskins their first lead of the game, 17-13, with just over a minute to go. The Lions took the lead back on the next drive, when Matthew Stafford hit Anquan Boldin for an 18-yard TD with 16 seconds left, to win the game, 20-17.
Question: How many touchdowns were in the game?
Answer type: Number
4.