Instructions: In this task, you're given a question, along with three passages, 1, 2, and 3. Your job is to determine which passage can be used to answer the question by searching for further information using terms from the passage. Indicate your choice as 1, 2, or 3.
Input: Question: What year was Fort Sill founded? Passage 1:In 1916, the 10th Field Artillery was activated for federal service in World War I, and Danford commanded the regiment during its initial training at Tobyhanna Army Depot. From February to July 1917, Danford was assigned as assistant professor of military science at Yale University, and served as the mustering officer for members of the Connecticut National Guard as they entered federal service. While at Yale, Danford co-authored Notes on Training Field Artillery Details, a practical manual for teaching field artillery tactics and techniques. It quickly became the Army's standard reference work for training field artillery soldiers, and went through numerous printings during and after World War I. In July 1917, Danford served as mustering officer for members of the Pennsylvania National Guard, after which he traveled to Fort Sill, where he served as an artillery instructor. Originally slated to join the 42nd Division, in August, he was instead assigned to the 302nd Field Artillery, a unit of the 76th Division. He trained with the regiment at Camp Devens, Massachusetts, after which he was assigned to Plattsburgh Barracks, New York as senior instructor of field artillery for the Army's second wartime Officers' Training Camp. He was promoted to major in August, and temporary lieutenant colonel on the same day.
 Passage 2:"Midnight Sun" is a song recorded by the Romanian female singer Elena Gheorghe. The song was recorded in summer 2010 and premiered on November 15, 2010, on Gheorghe's official YouTube channel. It was released under Cat Music exclusively in Romania. The song has more house influences than the previous number-one hit "Disco Romancing". It was sent to the mainstream radio stations in late November and it is promoted as the second single taken from Gheorghe's album entitled Disco Romancing. Lyrically, the song describes the shiver a millionaire wannabe guy gets when he sees Elena dancing. The song had its official radio premiere on the Romanian National Day, at radio ZU, though it premiered on Kiss FM a week earlier. Elena performed "Midnight Sun" live, on December 31, during a New Year special show, held by Pro TV. The music video was already shot in Bucharest and it was released via YouTube on May 13, 2011. The video features many special effects as well as the track listing for Gheorghe's upcoming album. The song peaked at number-one the Radio Top 50 and charted within the top ten in two other Romanian charts. In the official Romanian Top 100 it peaked at number-ten, thus making it Elena's fifth song to enter the top ten in Romania, after "Soarele meu", "Vocea ta", "The Balkan Girls" and "Disco Romancing". The song was performed at many dates throughout Romania.
 Passage 3:Jablonski was born in the village of Nassenhuben, near Danzig (Gdańsk). His father, Peter Figulus, was a minister of Unity of the Brethren (; – also known as "Bohemian Brethren"); the son preferred the Bohemian surname Jablonski (Jablonský) which was based on his father's birthplace – Jablonné nad Orlicí. He was the younger brother of Johann Theodor Jablonski. His maternal grandfather, Johann Amos Comenius (d. 1670), was the last bishop of the Unity. Having studied at Frankfurt (Oder) and at Oxford, Jablonski entered upon his career as a preacher at Magdeburg in 1683, and then from 1686 to 1691 he was the head of the Brethren college at Polish Leszno (), a position which had been filled by his grandfather. Consecrated a bishop of the Unity for the churches in Poland, he was encouraged by the Elector Friedrich Wilhelm I of Brandenburg, King in Prussia, to secure the Apostolic Succession to the Renewed Unity of Brethren, the Moravian Church, and consecrated David Nitschmann bishop in Berlin in 1735.

Output:
1