Input: Article: General Electric switched to use the ASA scale in 1946. Meters manufactured since February 1946 were equipped with the ASA scale (labeled "Exposure Index") already. For some of the older meters with scales in "Film Speed" or "Film Value" (e.g. models DW-48, DW-49 as well as early DW-58 and GW-68 variants), replaceable hoods with ASA scales were available from the manufacturer. The company continued to publish recommended film values after that date, however, they were now aligned to the ASA scale.

Now answer this question: Beginning what year were cameras built with the ASA meter?

Output: 1946

Input: Article: Under the Royal Assent Act 1967, royal assent can be granted by the sovereign in writing, by means of letters patent, that are presented to the presiding officer of each house of parliament. Then, the presiding officer makes a formal, but simple statement to the house, acquainting each house that royal assent has been granted to the acts mentioned. Thus, unlike the granting of royal assent by the monarch in person or by Royal Commissioners, the method created by the Royal Assent Act 1967 does not require both houses to meet jointly for the purpose of receiving the notice of royal assent. The standard text of the letters patent is set out in The Crown Office (Forms and Proclamations Rules) Order 1992, with minor amendments in 2000. In practice this remains the standard method, a fact that is belied by the wording of the letters patent for the appointment of the Royal Commissioners and by the wording of the letters patent for the granting of royal assent in writing under the 1967 Act ("... And forasmuch as We cannot at this time be present in the Higher House of Our said Parliament being the accustomed place for giving Our Royal Assent...").

Now answer this question: Which document formats the letters patent?

Output: The Crown Office (Forms and Proclamations Rules) Order 1992

Input: Article: In 1897, Frank Shuman, a U.S. inventor, engineer and solar energy pioneer built a small demonstration solar engine that worked by reflecting solar energy onto square boxes filled with ether, which has a lower boiling point than water, and were fitted internally with black pipes which in turn powered a steam engine. In 1908 Shuman formed the Sun Power Company with the intent of building larger solar power plants. He, along with his technical advisor A.S.E. Ackermann and British physicist Sir Charles Vernon Boys, developed an improved system using mirrors to reflect solar energy upon collector boxes, increasing heating capacity to the extent that water could now be used instead of ether. Shuman then constructed a full-scale steam engine powered by low-pressure water, enabling him to patent the entire solar engine system by 1912.

Now answer this question: In what year was the Sun Power Company established?

Output:
1908