Input: Read this: At the end of the 15th century the Ottoman Empire advanced all over Southeastern Europe, eventually conquering the Byzantine Empire and extending control over the Balkan states. Hungary was the last bastion of the Latin Christian world in the East, and fought to keep its rule over a period of two centuries. After the tragic death of the young king Vladislaus I of Hungary during the Battle of Varna in 1444 against the Ottomans, the Kingdom was placed in the hands of count John Hunyadi, who became Hungary's regent-governor (14461453). Hunyadi was considered one of the most relevant military figures of the 15th century: Pope Pius II awarded him the title of Athleta Christi or Champion of Christ for being the only hope of resisting the Ottomans from advancing to Central and Western Europe.
Question: Which Hungarian ruler was killed at the Battle of Varna?

Output: Vladislaus I

Input: Read this: Lions are said to inhabit the mountains of the Gash-Barka Region. There is also a small population of elephants that roam in some parts of the country. Dik-diks can also be found in many areas. The endangered African wild ass can be seen in Denakalia Region. Other local wildlife include bushbucks, duikers, greater kudus, klipspringers, African leopards, oryxs and crocodiles., The spotted hyena is widespread and fairly common. Between 1955 and 2001 there were no reported sightings of elephant herds, and they are thought to have fallen victim to the war of independence. In December 2001 a herd of about 30, including 10 juveniles, was observed in the vicinity of the Gash River. The elephants seemed to have formed a symbiotic relationship with olive baboons, with the baboons using the water holes dug by the elephants, while the elephants use the tree-top baboons as an early warning system.
Question: In December 2001, how many elephants were seen in the vicinity of the Gash River?

Output: about 30

Input: Read this: The term Muslim world, also known as Islamic world and the Ummah (Arabic: , meaning "nation" or "community") has different meanings. In a religious sense, the Islamic Ummah refers to those who adhere to the teachings of Islam, referred to as Muslims. In a cultural sense, the Muslim Ummah refers to Islamic civilization, exclusive of non-Muslims living in that civilization. In a modern geopolitical sense, the term "Islamic Nation" usually refers collectively to Muslim-majority countries, states, districts, or towns.
Question: World and group are the same as what Aribic word?

Output: unanswerable

Input: Read this: There were 112,608 households in the city in 2000, of which 26.5% included children below the age of 18, 39.5% were composed of married couples living together, 11.4% reported a female householder with no husband present, and 45.5% classified themselves as nonfamily. Unmarried partners were present in 2.2% of households. In addition, 33.1% of all households were composed of individuals living alone, of which 6.2% was someone 65 years of age or older. The average household size in Raleigh was 2.30 persons, and the average family size was 2.97 persons.
Question: What percentage were 70 and older?

Output:
unanswerable