Input: Read this: The first PCBs used through-hole technology, mounting electronic components by leads inserted through holes on one side of the board and soldered onto copper traces on the other side. Boards may be single-sided, with an unplated component side, or more compact double-sided boards, with components soldered on both sides. Horizontal installation of through-hole parts with two axial leads (such as resistors, capacitors, and diodes) is done by bending the leads 90 degrees in the same direction, inserting the part in the board (often bending leads located on the back of the board in opposite directions to improve the part's mechanical strength), soldering the leads, and trimming off the ends. Leads may be soldered either manually or by a wave soldering machine.
Question: For boards with two sides, to what angle are leads bent to in order to install them horizontally?

Output: 90 degrees


Input: Read this: Arsenal's parent company, Arsenal Holdings plc, operates as a non-quoted public limited company, whose ownership is considerably different from that of other football clubs. Only 62,217 shares in Arsenal have been issued, and they are not traded on a public exchange such as the FTSE or AIM; instead, they are traded relatively infrequently on the ICAP Securities and Derivatives Exchange, a specialist market. On 10 March 2016, a single share in Arsenal had a mid price of £15,670, which sets the club's market capitalisation value at approximately £975m. Most football clubs aren't listed on an exchange, which makes direct comparisons of their values difficult. Business magazine Forbes valued Arsenal as a whole at $1.3 billion in 2015. Consultants Brand Finance valued the club's brand and intangible assets at $703m in 2015, and consider Arsenal an AAA global brand. Research by the Henley Business School modelled the club's value at £1.118 billion in 2015, the second highest in the Premier League.
Question: By what means does Arsenal operate as a company?

Output: non-quoted public limited


Input: Read this: Pain is a distressing feeling often caused by intense or damaging stimuli, such as stubbing a toe, burning a finger, putting alcohol on a cut, and bumping the "funny bone". Because it is a complex, subjective phenomenon, defining pain has been a challenge. The International Association for the Study of Pain's widely used definition states: "Pain is an unpleasant sensory and emotional experience associated with actual or potential tissue damage, or described in terms of such damage." In medical diagnosis, pain is a symptom.
Question: In medical diagnosis, what is pain considered?

Output: a symptom


Input: Read this: The Swazi economy is very closely linked to the economy of South Africa, from which it receives over 90% of its imports and to which it sends about 70% of its exports. Swaziland's other key trading partners are the United States and the EU, from whom the country has received trade preferences for apparel exports (under the African Growth and Opportunity Act – AGOA – to the US) and for sugar (to the EU). Under these agreements, both apparel and sugar exports did well, with rapid growth and a strong inflow of foreign direct investment. Textile exports grew by over 200% between 2000 and 2005 and sugar exports increasing by more than 50% over the same period.
Question: Which nations economy is Swaziland most linked with?

Output:
South Africa