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 shape or object is the type of bell opening of the tower named after? Passage 1:Robert Riabhach ("Grizzled") Duncanson, 4th Chief of Clann Dhònnchaidh, was a strong supporter of King James I (1406–1437) and was incensed by his murder at the Blackfriars Dominican Friary in Perth. He tracked down and captured two of the regicides, Sir Robert Graham and the King's uncle Walter Stewart, Earl of Atholl, as they hid above Invervack in Atholl, and turned them over to the Crown. They were tortured to death in the Grassmarket in Edinburgh on the orders of the Regent, James I's widow, Joan Beaufort (d. 1445). The Collins Scottish Clan & Family Encyclopedia states that they were put to death with considerable savagery. The Robertson crest badge of a right hand upholding an imperial crown was awarded by James II (1437–60) to the 4th chief on 15 August 1451 as a reward for capturing his father's assassins. The highly unusual third supporter (below the shield) on the Robertson coat of arms, of a "savage man in chains" is in reference to the capture of Graham. It is in honour of Robert Riabhach that his descendants took the name Robertson. James II also erected the clan lands into the Barony of Struan, which formerly took in extensive lands in Highland Perthshire, notably in Glen Errochty, the north and south banks of Loch Tay and the area surrounding Loch Rannoch. None of these lands are any longer in the possession of the clan.
 Passage 2:The church is constructed in punch-dressed sandstone ashlar, and has slate roofs with inserted skylight windows. Its architectural style is Early English. The plan consists of a four-bay nave without aisles, a two-bay chancel with a north chapel and a south vestry, and a west tower. The tower is in three stages, with clasping buttresses, and contains paired west doorways, a clock face in a diamond-shaped surround, and pairs of louvred bell openings. At the top of the tower is an embattled parapet with octagonal corner pinnacles, and there are more pinnacles at the angles of the nave. The bays of the nave are separated by buttresses, and each bay contains a corbel-table and a pair of lancet windows. The sides of the chancel also contain paired lancet windows, and the east window consists of a triple stepped lancet in a blank arch. The north chapel is gabled, and contains a wheel window. The interior has been remodelled, but originally it contained a three-sided gallery on cast iron columns.
 Passage 3:The rest of the matches for the show were announced on September 25, the day after Destruction in Kobe. Added were title matches for both of NJPW's junior heavyweight titles. In the IWGP Junior Heavyweight Championship match, Kushida would defend the title against Will Ospreay. After successfully defending the title against El Desperado on September 16 at Destruction in Hiroshima, Kushida was approached by Ospreay, who stated that he was being defined as the man who could not beat Kushida and wanting to change that perception, challenged him to a title match. This was followed by Hiromu Takahashi entering the ring, but before he could make his own challenge, he was knocked out by Ospreay. Ospreay had been defeated by Kushida in all four of their previous matches against each other, including the finals of the 2017 Best of the Super Juniors and What Culture Pro Wrestling's 2017 Pro Wrestling World Cup tournaments, as well as two IWGP Junior Heavyweight Championship matches, which took place on April 10, 2016, at Invasion Attack 2016 and June 19, 2016, at Dominion 6.19 in Osaka-jo Hall. In the IWGP Junior Heavyweight Tag Team Championship match, Funky Future (Ricochet and Ryusuke Taguchi) were set to defend the title against the mystery team known only as "Roppongi 3K". After dissolving his Roppongi Vice tag team with Beretta on September 16, Rocky Romero approached Ricochet and Taguchi after they had successfully defended the IWGP Junior Heavyweight Tag Team Championship against Taichi and Yoshinobu Kanemaru and announced he was bringing in a new team to challenge them for the title. Heading into the title match, the identities of Roppongi 3K were kept secret.

Output:
2