Input: Read this: As a teenager, he was greatly troubled by the Metaphysics of Aristotle, which he could not understand until he read al-Farabi's commentary on the work. For the next year and a half, he studied philosophy, in which he encountered greater obstacles. In such moments of baffled inquiry, he would leave his books, perform the requisite ablutions, then go to the mosque, and continue in prayer till light broke on his difficulties. Deep into the night, he would continue his studies, and even in his dreams problems would pursue him and work out their solution. Forty times, it is said, he read through the Metaphysics of Aristotle, till the words were imprinted on his memory; but their meaning was hopelessly obscure, until one day they found illumination, from the little commentary by Farabi, which he bought at a bookstall for the small sum of three dirhams. So great was his joy at the discovery, made with the help of a work from which he had expected only mystery, that he hastened to return thanks to God, and bestowed alms upon the poor.
Question: How many times did Acicenna read al Farabi's commentary?

Output: unanswerable

QUES: During the 1930s, the first two motorways were built across the Land, the A4 motorway as an important east-west connection in central Germany and the main link between Berlin and south-west Germany, and the A9 motorway as the main north-south route in eastern Germany, connecting Berlin with Munich. The A4 runs from Frankfurt in Hesse via Eisenach, Gotha, Erfurt, Weimar, Jena and Gera to Dresden in Saxony, connecting Thuringia's most important cities. At Hermsdorf junction it is connected with the A9. Both highways were widened from four to six lanes (three each way) after 1990, including some extensive re-routing in the Eisenach and Jena areas. Furthermore, three new motorways were built during the 1990s and 2000s. The A71 crosses the Land in southwest-northeast direction, connecting Wurzburg in Bavaria via Meiningen, Suhl, Ilmenau, Arnstadt, Erfurt and Sommerda with Sangerhausen and Halle in Saxony-Anhalt. The crossing of the Thuringian Forest by the A71 has been one of Germany's most expensive motorway segments with various tunnels (including Germany's longest road tunnel, the Rennsteig Tunnel) and large bridges. The A73 starts at the A71 south of Erfurt in Suhl and runs south towards Nuremberg in Bavaria. The A38 is another west-east connection in the north of Thuringia running from Gottingen in Lower Saxony via Heiligenstadt and Nordhausen to Leipzig in Saxony. Furthermore, there is a dense network of federal highways complementing the motorway network. The upgrading of federal highways is prioritised in the federal trunk road programme 2015 (Bundesverkehrswegeplan 2015). Envisaged projects include upgrades of the B247 from Gotha to Leinefelde to improve Muhlhausen's connection to the national road network, the B19 from Eisenach to Meiningen to improve access to Bad Salzungen and Schmalkalden, and the B88 and B281 for strengthening the Saalfeld/Rudolstadt region.

When were the first motorways built in Thuringia?
What is the answer?
ANS: During the 1930s

QUES: Complex serological techniques have been developed into what are known as Immunoassays. Immunoassays can use the basic antibody antigen binding as the basis to produce an electro - magnetic or particle radiation signal, which can be detected by some form of instrumentation. Signal of unknowns can be compared to that of standards allowing quantitation of the target antigen. To aid in the diagnosis of infectious diseases, immunoassays can detect or measure antigens from either infectious agents or proteins generated by an infected organism in response to a foreign agent. For example, immunoassay A may detect the presence of a surface protein from a virus particle. Immunoassay B on the other hand may detect or measure antibodies produced by an organism's immune system that are made to neutralize and allow the destruction of the virus.
Immunoassays are able to detect what type of proteins?

ANS: generated by an infected organism in response to a foreign agent

As of 2008, there were an estimated 150200 million native speakers of Iranian languages. Ethnologue estimates there are 86 Iranian languages, the largest amongst them being Persian, Pashto, Kurdish, and Balochi.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What are some of the largest among the 200 Iranian languages?
Ah, so.. unanswerable

Question: The status of East Jerusalem in any future peace settlement has at times been a difficult issue in negotiations between Israeli governments and representatives of the Palestinians, as Israel views it as its sovereign territory, as well as part of its capital. Most negotiations relating to the territories have been on the basis of United Nations Security Council Resolution 242, which emphasises "the inadmissibility of the acquisition of territory by war", and calls on Israel to withdraw from occupied territories in return for normalization of relations with Arab states, a principle known as "Land for peace".
Try to answer this question if possible: What is the principle of normalization of relations with Arab states?
Answer: Land for peace

Context and question: One of the oldest observatories in South America is the Quito Astronomical Observatory. Founded in 1873 and located 12 minutes south of the Equator in Quito, Ecuador. The Quito Astronomical Observatory is the National Observatory of Ecuador and is located in the Historic Center of Quito and is managed by the National Polytechnic School.
What observatory is the National Observatory of Ecuador?
Answer:
Quito Astronomical Observatory