Input: Umayyad Caliphate
In 680 Ibn al-Zubayr fled Medina for Mecca. Hearing about Husayn's opposition to Yazid I, the people of Kufa sent to Husayn asking him to take over with their support. Al-Husayn sent his cousin Muslim bin Agail to verify if they would rally behind him. When the news reached Yazid I, he sent Ubayd-Allah bin Ziyad, ruler of Basrah, with the instruction to prevent the people of Kufa rallying behind Al-Husayn. Ubayd-Allah bin Ziyad managed to disperse the crowd that gathered around Muslim bin Agail and captured him. Realizing Ubayd-Allah bin Ziyad had been instructed to prevent Husayn from establishing support in Kufa, Muslim bin Agail requested a message to be sent to Husayn to prevent his immigration to Kufa. The request was denied and Ubayd-Allah bin Ziyad killed Muslim bin Agail. While Ibn al-Zubayr would stay in Mecca until his death, Husayn decided to travel on to Kufa with his family, unaware of the lack of support there. Husayn and his family were intercepted by Yazid I's forces led by Amru bin Saad, Shamar bin Thi Al-Joshan, and Hussain bin Tamim, who fought Al-Husayn and his male family members until they were killed. There were 200 people in Husayn's caravan, many of whom were women, including his sisters, wives, daughters and their children. The women and children from Husayn's camp were taken as prisoners of war and led back to Damascus to be presented to Yazid I. They remained imprisoned until public opinion turned against him as word of Husayn's death and his family's capture spread. They were then granted passage back to Medina. The sole adult male survivor from the caravan was Ali ibn Husayn who was with fever too ill to fight when the caravan was attacked.

What did Ubayd-Allah bin Ziyad rule?
Output: Basrah

Input: IPod
At the time the store was introduced, purchased audio files used the AAC format with added encryption, based on the FairPlay DRM system. Up to five authorized computers and an unlimited number of iPods could play the files. Burning the files with iTunes as an audio CD, then re-importing would create music files without the DRM. The DRM could also be removed using third-party software. However, in a deal with Apple, EMI began selling DRM-free, higher-quality songs on the iTunes Stores, in a category called "iTunes Plus." While individual songs were made available at a cost of US$1.29, 30 more than the cost of a regular DRM song, entire albums were available for the same price, US$9.99, as DRM encoded albums. On October 17, 2007, Apple lowered the cost of individual iTunes Plus songs to US$0.99 per song, the same as DRM encoded tracks. On January 6, 2009, Apple announced that DRM has been removed from 80% of the music catalog, and that it would be removed from all music by April 2009.

In what year was DRM completely eliminated from the iTunes offerings?
Output: 2009

Input: University
Their endowment by a prince or monarch and their role in training government officials made these Mediterranean universities similar to Islamic madrasas, although madrasas were generally smaller and individual teachers, rather than the madrasa itself, granted the license or degree. Scholars like Arnold H. Green and Hossein Nasr have argued that starting in the 10th century, some medieval Islamic madrasahs became universities. George Makdisi and others, however, argue that the European university has no parallel in the medieval Islamic world. Other scholars regard the university as uniquely European in origin and characteristics.

From where did a degree come in a madrasa?
Output: individual teachers

Input: Guam
The island of Guam is 30 miles (50 km) long and 4 to 12 miles (6 to 19 km) wide, 34 the size of Singapore. The island experiences occasional earthquakes due to its location on the western edge of the Pacific Plate and near the Philippine Sea Plate. In recent years, earthquakes with epicenters near Guam have had magnitudes ranging from 5.0 to 8.7. Unlike the Anatahan volcano in the Northern Mariana Islands, Guam is not volcanically active. However, due to its proximity to Anatahan, vog (i.e. volcanic smog) does occasionally affect Guam.

What natural disaster that is not predictable does Guam have to worry about?
Output:
earthquakes