Input: Read this: In Southeast Asia, Muslim students have a choice of attending a secular government or an Islamic school. Madaris or Islamic schools are known as Sekolah Agama (Malay: religious school) in Malaysia and Indonesia, (Thai: school of Islam) in Thailand and madaris in the Philippines. In countries where Islam is not the majority or state religion, Islamic schools are found in regions such as southern Thailand (near the Thai-Malaysian border) and the southern Philippines in Mindanao, where a significant Muslim population can be found.
Question: Who decides if Muslims attend secular schools or traditional madaris?

Output: students

Input: Read this: Many ancient civilizations alloyed metals for purely aesthetic purposes. In ancient Egypt and Mycenae, gold was often alloyed with copper to produce red-gold, or iron to produce a bright burgundy-gold. Gold was often found alloyed with silver or other metals to produce various types of colored gold. These metals were also used to strengthen each other, for more practical purposes. Copper was often added to silver to make sterling silver, increasing its strength for use in dishes, silverware, and other practical items. Quite often, precious metals were alloyed with less valuable substances as a means to deceive buyers. Around 250 BC, Archimedes was commissioned by the king to find a way to check the purity of the gold in a crown, leading to the famous bath-house shouting of "Eureka!" upon the discovery of Archimedes' principle.
Question: Ten is often added to what to make sterling silver?

Output: unanswerable

Input: Read this: Exchanging "+" and "" in the expression, i.e. permuting the two solutions of the equation can be viewed as a (very simple) group operation. Similar formulae are known for cubic and quartic equations, but do not exist in general for degree 5 and higher. Abstract properties of Galois groups associated with polynomials (in particular their solvability) give a criterion for polynomials that have all their solutions expressible by radicals, i.e. solutions expressible using solely addition, multiplication, and roots similar to the formula above.
Question: What give criterion for abstract properties?

Output: unanswerable

Input: Read this: More recently, articles in various financial periodicals, most notably Forbes magazine, have pointed to Fidel Castro, General Secretary of the Republic of Cuba since 1959, of likely being the beneficiary of up to $900 million, based on "his control" of state-owned companies. Opponents of his regime claim that he has used money amassed through weapons sales, narcotics, international loans, and confiscation of private property to enrich himself and his political cronies who hold his dictatorship together, and that the $900 million published by Forbes is merely a portion of his assets, although that needs to be proven.
Question: What is Fidel Castro's official title?

Output:
General Secretary of the Republic of Cuba