Given the task definition and input, reply with output. 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.

Question: What islands made up the Trust Territories where the USS Butternut began three years of service in 1947? Passage 1:The Story Mound is a Native American mound in the southwestern part of the U.S. state of Ohio. Located in the Sayler Park neighborhood of the city of Cincinnati, the mound lies along Gracely Drive. No archaeological excavation has ever been conducted at the mound, and it has remained otherwise undisturbed as well; consequently, the mound remains in pristine condition. Despite the lack of evidence from excavations, the mound has been determined to be a work of the Adena culture, due in part to artifacts such as bones that have been found in the land immediately surrounding the mound. These findings, together with the mound's location near the floodplain of the Ohio River, have been understood as evidence of a larger group of Adena sites in the vicinity of the Story Mound. Such a complex, if it exists, would have great value as an archaeological site; therefore, the Story Mound was listed on the National Register of Historic Places in 1975.
Passage 2:USS Butternut departed Leyte Gulf in convoy on 24 February 1947 and shaped a course for the Marianas. She arrived at Guam on 9 March and began three years of service in the Trust Territories of the Pacific Ocean Islands. Based at Apra Harbor on Guam, she carried passengers and cargo among the islands as well as laying and tending nets at various islands. The ship also performed several assignments off Iwo Jima laying mooring buoys and assisting in the recovery, repair and replacement of submarine lines. the ship departed Guam on 19 June 1950 for repairs at the Pearl Harbor Naval Shipyard. The net laying ship completed repairs and put to sea on 15 September. Steaming via Guam and Iwo Jima, she arrived in Sasebo, Japan, on 28 October. The ship conducted operations at Sasebo and Yokosuka, Japan, until 7 July 1951 when she set sail for Guam to resume her former duties in the Trust Territories.
Passage 3:The See of Tyre was the most prestigious archbishopric under the authority of the patriarchs of Antioch from the 5th century. The archbishops had more than a dozen suffragans, including the bishops of Acre, Beirut, Jubail, Sidon, Tripoli and Tortosa. The crusaders captured Tortosa (now Tartus in Syria) in 1102, Jubail in 1103, and Tripoli in 1109. In the late 1170s, William of Tyre wrote that Bernard of Valence, the Latin Patriarch of Antioch, had soon appointed Latin bishops to the three bishoprics. Documents written in the early 12th century did not refer to the bishops of the three dioceses, suggesting that the three sees, all located in the newly established crusader County of Tripoli, were actually left vacant. After King Baldwin I of Jerusalem captured Sidon and Beirut in 1110, Ghibbelin of Arles, the Latin Patriarch of Jerusalem, convinced Baldwin I to ask Pope Paschal II to place the two sees and also the bishopric of Acre under the jurisdiction of the patriarchs of Jerusalem. Accepting the king's argumentation, the Pope ruled on 8 June 1111 that the boundaries of the ecclesiastical provinces should follow the political frontiers. Patriarch Bernard protested, but the Pope confirmed his decision, emphasizing his right to alter the boundaries of the patriarchates.
2