Input: Read this: On 11 July 2011, Neptune completed its first full barycentric orbit since its discovery in 1846, although it did not appear at its exact discovery position in the sky, because Earth was in a different location in its 365.26-day orbit. Because of the motion of the Sun in relation to the barycentre of the Solar System, on 11 July Neptune was also not at its exact discovery position in relation to the Sun; if the more common heliocentric coordinate system is used, the discovery longitude was reached on 12 July 2011.
Question: When did Neptune complete it's last barycentric orbit since it's discovery?

Output: unanswerable

QUES: In the first volume of his Parerga and Paralipomena, Schopenhauer wrote his "Sketch of a History of the Doctrine of the Ideal and the Real". He defined the ideal as being mental pictures that constitute subjective knowledge. The ideal, for him, is what can be attributed to our own minds. The images in our head are what comprise the ideal. Schopenhauer emphasized that we are restricted to our own consciousness. The world that appears is only a representation or mental picture of objects. We directly and immediately know only representations. All objects that are external to the mind are known indirectly through the mediation of our mind. He offered a history of the concept of the "ideal" as "ideational" or "existing in the mind as an image".

How are external objects known directly?
What is the answer?
ANS: unanswerable

QUES: Schwarzenegger's official height of 6'2" (1.88 m) has been brought into question by several articles. In his bodybuilding days in the late 1960s, he was measured to be 6'1.5" (1.87 m), a height confirmed by his fellow bodybuilders. However, in 1988 both the Daily Mail and Time Out magazine mentioned that Schwarzenegger appeared noticeably shorter. Prior to running for Governor, Schwarzenegger's height was once again questioned in an article by the Chicago Reader. As Governor, Schwarzenegger engaged in a light-hearted exchange with Assemblyman Herb Wesson over their heights. At one point, Wesson made an unsuccessful attempt to, in his own words, "settle this once and for all and find out how tall he is" by using a tailor's tape measure on the Governor. Schwarzenegger retaliated by placing a pillow stitched with the words "Need a lift?" on the five-foot-five inch (165 cm) Wesson's chair before a negotiating session in his office. Bob Mulholland also claimed Schwarzenegger was 5'10" (1.78 m) and that he wore risers in his boots. In 1999, Men's Health magazine stated his height was 5'10".
How tall does Schwarzenegger claim to be?

ANS: 6'2"

European overseas expansion led to the rise of colonial empires, producing the Columbian Exchange. The combination of resource inflows from the New World and the Industrial Revolution of Great Britain, allowed a new economy based on manufacturing instead of subsistence agriculture.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What replaced agriculture as the focus of European economy with the establishment of overseas colonies?
Ah, so.. manufacturing

Question: Micronesian colonists gradually settled the Marshall Islands during the 2nd millennium BC, with inter-island navigation made possible using traditional stick charts. Islands in the archipelago were first explored by Europeans in the 1520s, with Spanish explorer Alonso de Salazar sighting an atoll in August 1526. Other expeditions by Spanish and English ships followed. The islands derive their name from British explorer John Marshall, who visited in 1788. The islands were historically known by the inhabitants as "jolet jen Anij" (Gifts from God).
Try to answer this question if possible: For whom are the Marshall Islands named?
Answer: John Marshall

Input: Read this: The crusades were intended to seize Jerusalem from Muslim control. The First Crusade was proclaimed by Pope Urban II (pope 108899) at the Council of Clermont in 1095 in response to a request from the Byzantine Emperor Alexios I Komnenos (r. 10811118) for aid against further Muslim advances. Urban promised indulgence to anyone who took part. Tens of thousands of people from all levels of society mobilised across Europe and captured Jerusalem in 1099. One feature of the crusades was the pogroms against local Jews that often took place as the crusaders left their countries for the East. These were especially brutal during the First Crusade, when the Jewish communities in Cologne, Mainz, and Worms were destroyed, and other communities in cities between the rivers Seine and Rhine suffered destruction. Another outgrowth of the crusades was the foundation of a new type of monastic order, the military orders of the Templars and Hospitallers, which fused monastic life with military service.
Question: What Byzantine Emperor's request for assistance led to the First Crusade?

Output:
Alexios I Komnenos