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.
Input: Passage: Coming off their impressive win over the Redskins, the Eagles went home for a Week 11 NFC East duel with the New York Giants on Sunday night.  Philadelphia delivered the game's opening strike with a 4-yard touchdown run from quarterback Michael Vick.  The Giants answered in the second quarter with kicker Lawrence Tynes getting a 24-yard field goal, yet the Eagles replied with a 38-yard and a 24-yard field goal from kicker David Akers. Philadelphia added onto their lead in the third quarter with Akers' 28-yard field goal, yet New York replied with quarterback Eli Manning completed a 2-yard touchdown pass to tight end Travis Beckum.  The Giants took the lead in the fourth quarter as Manning completed a 5-yard touchdown pass to wide receiver Derek Hagan, yet the Eagles struck back with a 50-yard touchdown run from running back LeSean McCoy (with Vick completing a 2-point conversion pass to wide receiver Jason Avant).  Afterwards, Philadelphia pulled away with Akers' 50-yard field goal. 
Question: how many yards did the eagles strike back with? 
Answer type: Number 
Output:
50.