Question: Q1: Which country is the stock exchange based for Core Laboratories?

Context paragraphs:
Core Laboratories: Core Laboratories N.V. is one of the largest service providers of core and fluid analysis in the petroleum industry.  Their specialties include basic rock properties, special core analysis, and PVT characterization of reservoir fluids.  The company is a publicly traded company on NYSE under the symbol "CLB" since July 10, 1998, and on Euronext Amsterdam since May 16, 2012.

Euronext Amsterdam: Euronext Amsterdam is a stock exchange based in Amsterdam.  Formerly known as the Amsterdam Stock Exchange, it merged on 22 September 2000 with the Brussels Stock Exchange and the Paris Stock Exchange to form Euronext.

Bangalore Stock Exchange: BgSE Properties and Securities Limited, formerly Bangalore Stock Exchange Limited, is a public stock exchange based in Bangalore, India.  It was founded in 1963 and currently has 595 regional and non-regional companies listed.  In September 2005, the BgSE announced plans to go public by divesting at least 51% of its ownership.  The stock exchange is managed by a Council of Management, consisting of members appointed by the Securities and Exchange Board of India.  First stock exchange in South India to start electronic trading of securities in 1996.

Baltimore Stock Exchange: The Baltimore Stock Exchange was a regional stock exchange based in Baltimore, Maryland.  Opened prior to 1881, The exchange's building was destroyed by the Great Baltimore Fire of 1904, and was then located at 210 East Redwood Street in Baltimore's old financial district.  In 1918, the exchange had 87 members, with six or seven members at the time serving the United States in World War I.  The Baltimore Stock Exchange was acquired the Philadelphia Stock Exchange in 1949, becoming the Philadelphia-Baltimore Stock Exchange.  The Baltimore Stock Exchange Building was sold and renamed the Totman Building.

Belgrade Stock Exchange: The Belgrade Stock Exchange (abbr.  BELEX, Serbian: Београдска берза / "Beogradska berza" ) is a stock exchange based in Belgrade, Serbia.  The Stock exchange was founded in 1894 in the Kingdom of Serbia, after the King proclaimed the Stock exchange law of 1886.  Currently, the Belgrade Stock Exchange is a full member of Federation of Euro-Asian Stock Exchanges (FEAS) and an associate member of Federation of European Securities Exchanges (FESE).

San Francisco Stock and Bond Exchange: The San Francisco Stock and Bond Exchange was a regional stock exchange based in San Francisco, California, United States.  Founded in 1882, in 1928 the exchange purchased and began using the name San Francisco Stock Exchange, while the old San Francisco Stock Exchange was renamed the San Francisco Mining Exchange.  The San Francisco Curb Exchange was absorbed by the San Francisco Stock Exchange in 1938.  In 1956 the San Francisco Stock Exchange merged with the Los Angeles Oil Exchange to create the Pacific Coast Stock Exchange.

Washington Stock Exchange: The Washington Stock Exchange was a regional stock exchange based in Washington, D.C..  Active as early as the 1880s, on July 21, 1953, members of the Washington Stock Exchange board unanimously voted to merge with the Philadelphia-Baltimore Stock Exchange.  The merge occurred in 1954, creating the Philadelphia-Baltimore-Washington Stock Exchange.

Indonesia Stock Exchange: Indonesia Stock Exchange (Indonesian: "Bursa Efek Indonesia") is a stock exchange based in Jakarta, Indonesia.  It was previously known as the Jakarta Stock Exchange (JSX) before its name changed in 2007 after merging with the Surabaya Stock Exchange (SSX).  As of the end of 2016, the Indonesia Stock Exchange had 537 listed companies with a combined market capitalisation of IDR 5,753.6 trillion.  In mid September 2016, based on Single Identification Number there were 500,037 domestic investors, of which 487,713 were retail investors and 12,324 institutional investors.  As of September 21,2016 total daily transactions averaged more than 250,000, with an average value of Rp 6,400 billion/day.

National Stock Exchange of Australia: National Stock Exchange of Australia (NSX) is a stock exchange based in Sydney, Australia.  It is owned and operated by NSX Limited, which is listed on the Australian Securities Exchange on 13 January 2005.  It also operates SIM Venture Securities Exchange.  On 20 December 2006 the Newcastle Stock Exchange formally sought approval and was granted a change of name by the Minister to National Stock Exchange of Australia and still trades by the acronym of "NSX".

Jakarta Stock Exchange: Jakarta Stock Exchange (JSX) or in Indonesian Bursa Efek Jakarta (BEJ) was a stock exchange based in Jakarta, Indonesia, before it merged with the Surabaya Stock Exchange to form the Indonesian Stock Exchange.

Supporting paragraphs: Core Laboratories Euronext Amsterdam
Answer: Amsterdam