Definition: 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 age was Philip II's assassin when he killed the Macedonian king? Passage 1:Aegae or Aigai (), also Aegeae or Aigeai (Αἰγέαι), was a city in Emathia in ancient Macedonia, and the burial-place of the Macedonian kings. The commanding and picturesque site upon which the town was built was the original centre of the Macedonians, and the residence of the dynasty which sprang from the Temenid Perdiccas. The seat of government was afterwards transferred to the marshes of Pella, which lay in the maritime plain beneath the ridge through which the Lydias forces its way to the sea. But the old capital always remained the national hearth (ἑστία, Diod. Excerpt. p. 563) of the Macedonian race, and the burial-place for their kings. The body of Alexander the Great, though by the intrigues of Ptolemy I Soter, it was taken to Memphis, was to have reposed at Aegae, – the spot where his father Philip II of Macedon fell by the hand of Pausanias of Orestis.
 Passage 2:He was selected as Sepahan's assistant coach in 2006 by Luka Bonačić. After Sepahan was unable to win the 2007–08 season and was ranked as runner up like AFC Champions League and winning Hazfi Cup in both 2006 and 2007, Bonačić was resigned as Sepahan's head coach and was appointed as Dubai based team, Al-Nasr Sports Club. He was selected Ghanbari as his first team assistant coach which was worked with him until his dismissal in February 2009. After he expired his contract with Al-Nasr, he became assistant manager of Sepahan for a second time under management of Amir Ghalenoei. He continue his career with Sepahan after Ghalenoie's resignation in 2011. Bonačić was appointed as Sepahan head coach for a second tensure and Ghanbari was one of his assistants. On 14 August 2011 and after Bonačić was sacked by club due to bad results, Ghanbari became caretaker manager of Sepahan. He was replaced with Zlatko Kranjčar after Sepahan was eliminated from Hazfi Cup. On 30 May 2012, he was named as Mansour Ebrahimzadeh's assistant coach in Naft Tehran. After Ebrahimzadeh signed as head coach of Rah Ahan, Ghanbari also signs a contract to become his assistant.
 Passage 3:The maple leaf has been used as a Canadian emblem since the 18th century. It was first used as a national symbol in 1868 when it appeared on the coat of arms of both Ontario and Quebec. In 1867, Alexander Muir composed the patriotic song "The Maple Leaf Forever", which became an unofficial anthem in English-speaking Canada. The maple leaf was later added to the Canadian coat of arms in 1921. From 1876 until 1901, the leaf appeared on all Canadian coins and remained on the penny after 1901. The use of the maple leaf by the Royal Canadian Regiment as a regimental symbol extended back to 1860. During the First World War and Second World War, badges of the Canadian Forces were often based on a maple leaf design. The maple leaf would eventually adorn the tombstones of Canadian military graves.

Output:
1