Input: Read this: The Antarctic fur seal was very heavily hunted in the 18th and 19th centuries for its pelt by sealers from the United States and the United Kingdom. The Weddell seal, a "true seal", is named after Sir James Weddell, commander of British sealing expeditions in the Weddell Sea. Antarctic krill, which congregate in large schools, is the keystone species of the ecosystem of the Southern Ocean, and is an important food organism for whales, seals, leopard seals, fur seals, squid, icefish, penguins, albatrosses and many other birds.
Question: What animal was greatly hunted during the 18th and 19th centuries?

Output: Antarctic fur seal


QUES: The Classical era stringed instruments were the four instruments which form the string section of the orchestra: the violin, viola, cello and contrabass. Woodwinds included the basset clarinet, basset horn, clarinette d'amour, the Classical clarinet, the chalumeau, the flute, oboe and bassoon. Keyboard instruments included the clavichord and the fortepiano. While the harpsichord was still used in basso continuo accompaniment in the 1750s and 1760s, it fell out of use in the end of the century. Brass instruments included the buccin, the ophicleide (a serpent replacement which was the precursor of tuba) and the natural horn.

The flute, oboe and bassoon are all what type of instrument?
What is the answer?
ANS: Woodwinds


QUES: Modern computers based on integrated circuits are millions to billions of times more capable than the early machines, and occupy a fraction of the space. Computers are small enough to fit into mobile devices, and mobile computers can be powered by small batteries. Personal computers in their various forms are icons of the Information Age and are generally considered as "computers". However, the embedded computers found in many devices from MP3 players to fighter aircraft and from electronic toys to industrial robots are the most numerous.
How much more powerful are modern computers versus early computers?

ANS: millions to billions of times


In recent years, the School has put on a musical version of The Bacchae (October 2009) as well as productions of A Funny Thing Happened on the Way to the Forum (May 2010), The Cherry Orchard (February 2011), Joseph K (October 2011), Cyrano de Bergerac (May 2012), Macbeth (October 2012), London Assurance (May 2013) and Jerusalem (October 2013). Upcoming in May 2014 was a production of A Midsummer Night's Dream . Often girls from surrounding schools, such as St George's, Ascot, St Mary's School Ascot, Windsor Girls' School and Heathfield St Mary's School, are cast in female roles. Boys from the School are also responsible for the lighting, sound and stage management of all the productions, under the guidance of several professional full-time theatre staff.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What girl's school was featured in October 2011's Macbeth?
Ah, so.. unanswerable


Question: The key advantage of the four-rail system is that neither running rail carries any current. This scheme was introduced because of the problems of return currents, intended to be carried by the earthed (grounded) running rail, flowing through the iron tunnel linings instead. This can cause electrolytic damage and even arcing if the tunnel segments are not electrically bonded together. The problem was exacerbated because the return current also had a tendency to flow through nearby iron pipes forming the water and gas mains. Some of these, particularly Victorian mains that predated London's underground railways, were not constructed to carry currents and had no adequate electrical bonding between pipe segments. The four-rail system solves the problem. Although the supply has an artificially created earth point, this connection is derived by using resistors which ensures that stray earth currents are kept to manageable levels. Power-only rails can be mounted on strongly insulating ceramic chairs to minimise current leak, but this is not possible for running rails which have to be seated on stronger metal chairs to carry the weight of trains. However, elastomeric rubber pads placed between the rails and chairs can now solve part of the problem by insulating the running rails from the current return should there be a leakage through the running rails.
Try to answer this question if possible: How are stray earth currents kept to a manageable levels? 
Answer: by using resistors


QUES: The company aims to reduce its external environmental impact through energy-efficient evolution of products, and also reduce its direct operational impact through energy-efficiency programs. Internal energy-efficiency programs reportedly save the company more than $3 million annually in energy-cost savings. The largest component of the company's internal energy-efficiency savings comes through PC power management: the company expects to save $1.8 million in energy costs through using specialized energy-management software on a network of 50,000 PCs.
What does Dell aim to increase by creating energy efficient products?

ANS:
unanswerable