In this task, you are given a context paragraph, a question based on that and corresponding answer of a question. Your task is to generate supporting fact/knowledge from context paragraph which helps in answering a given question.

The Battle of Hürtgen Forest (German: "Schlacht im Hürtgenwald" ) was a series of fierce battles fought from 19 September to 16 December 1944 between American and German forces on the Western Front during World War II in the Hürtgen Forest about 50 mi2 east of the Belgian–German border. It was the longest battle on German ground during World War II, and is the longest single battle the U.S. Army has ever fought. Question: Which battle occurred first in history, The Battle of Hürtgen Forest or The Battle of Gettysburg? Answer: The Battle of Gettysburg
The Battle of Hürtgen Forest German: Schlacht im Hürtgenwald  was a series of fierce battles fought from 19 September to 16 December 1944 between American and German forces on the Western Front during World War II in the Hürtgen Forest about 50 mi2 east of the Belgian–German border.

ZZ Ward (born Zsuzsanna Eva Ward; June 2, 1986) is an American musician, singer and songwriter. She is signed to Boardwalk Entertainment Group and Hollywood Records, and managed by E. Kidd Bogart's Boardwalk Music Group. Question: Are both ZZ Ward and Tove Lo musicians? Answer: yes
ZZ Ward born Zsuzsanna Eva Ward; June 2, 1986 is an American musician, singer and songwriter.

Montrose was a California-based hard rock band. The band originally featured Ronnie Montrose on guitar and future solo artist and Van Halen frontman Sammy Hagar. Rounding out the original foursome were bassist Bill Church and drummer Denny Carmassi. Question: The Speed of Sound is an all-instrumental album, released in which year, by American rock guitarist Ronnie Montrose, who led the band Montrose? Answer: 1988

Montrose was a Californiabased hard rock band.