Q: I know that the answer to the question "Who uses elevators?" is in "Historically, AC motors were used for single or double speed elevator machines on the grounds of cost and lower usage applications where car speed and passenger comfort were less of an issue, but for higher speed, larger capacity elevators, the need for infinitely variable speed control over the traction machine becomes an issue. Therefore, DC machines powered by an AC/DC motor generator were the preferred solution. The MG set also typically powered the relay controller of the elevator, which has the added advantage of electrically isolating the elevators from the rest of a building's electrical system, thus eliminating the transient power spikes in the building's electrical supply caused by the motors starting and stopping (causing lighting to dim every time the elevators are used for example), as well as interference to other electrical equipment caused by the arcing of the relay contactors in the control system.". Can you tell me what it is?
A: passenger

Q: I know that the answer to the question "What was the initial plan?" is in "YouTube Red is YouTube's premium subscription service. It offers advertising-free streaming, access to exclusive content, background and offline video playback on mobile devices, and access to the Google Play Music "All Access" service. YouTube Red was originally announced on November 12, 2014, as "Music Key", a subscription music streaming service, and was intended to integrate with and replace the existing Google Play Music "All Access" service. On October 28, 2015, the service was re-launched as YouTube Red, offering ad-free streaming of all videos, as well as access to exclusive original content.". Can you tell me what it is?
A: intended to integrate with and replace the existing Google Play Music "All Access" service

Q: I know that the answer to the question "What interesting language is spoken in this community?" is in "In eastern Pennsylvania the Great Appalachian Valley, or Great Valley, was accessible by reason of a broad gateway between the end of South Mountain and the Highlands, and many Germans and Moravians settled here between the Susquehanna and Delaware Rivers forming the Pennsylvania Dutch community, some of whom even now speak a unique American dialect of German known as the "Pennsylvania German language" or "Pennsylvania Dutch." These latecomers to the New World were forced to the frontier to find cheap land. With their followers of both German, English and Scots-Irish origin, they worked their way southward and soon occupied all of the Shenandoah Valley, ceded by the Iroquois, and the upper reaches of the Great Valley tributaries of the Tennessee River, ceded by the Cherokee.". Can you tell me what it is?
A: Pennsylvania Dutch

Q: I know that the answer to the question "What appear after the election was a new labour prime minister in function?" is in "The 1923 general election was fought on the Conservatives' protectionist proposals but, although they got the most votes and remained the largest party, they lost their majority in parliament, necessitating the formation of a government supporting free trade. Thus, with the acquiescence of Asquith's Liberals, Ramsay MacDonald became the first ever Labour Prime Minister in January 1924, forming the first Labour government, despite Labour only having 191 MPs (less than a third of the House of Commons).". Can you tell me what it is?
A:
1924