I know that the answer to the question "How were VHS tapes read?" is in "LaserDiscs potentially had a much longer lifespan than videocassettes. Because the discs were read optically instead of magnetically, no physical contact needs to be made between the player and the disc, except for the player's clamp that holds the disc at its center as it is spun and read. As a result, playback would not wear the information-bearing part of the discs, and properly manufactured LDs would theoretically last beyond one's lifetime. By contrast, a VHS tape held all of its picture and sound information on the tape in a magnetic coating which is in contact with the spinning heads on the head drum, causing progressive wear with each use (though later in VHS's lifespan, engineering improvements allowed tapes to be made and played back without contact). Also, the tape was thin and delicate, and it was easy for a player mechanism, especially on a low quality or malfunctioning model, to mishandle the tape and damage it by creasing it, frilling (stretching) its edges, or even breaking it.". Can you tell me what it is?
Ans: magnetically

I know that the answer to the question "How many cities are in the City of London?" is in "Within London, both the City of London and the City of Westminster have city status and both the City of London and the remainder of Greater London are counties for the purposes of lieutenancies. The area of Greater London has incorporated areas that were once part of the historic counties of Middlesex, Kent, Surrey, Essex and Hertfordshire. London's status as the capital of England, and later the United Kingdom, has never been granted or confirmed officiallyby statute or in written form.[note 6]". Can you tell me what it is?
Ans: Within London, both the City of London and the City of Westminster have city status

I know that the answer to the question "What is the location of BCT dependent upon?" is in "Training in the U.S. Army is generally divided into two categories individual and collective. Basic training consists of 10 weeks for most recruits followed by Advanced Individualized Training (AIT) where they receive training for their military occupational specialties (MOS). Some individuals MOSs range anywhere from 1420 weeks of One Station Unit Training (OSUT), which combines Basic Training and AIT. The length of AIT school varies by the MOS The length of time spent in AIT depends on the MOS of the soldier, and some highly technical MOS training may require many months (e.g., foreign language translators). Depending on the needs of the army, Basic Combat Training for combat arms soldiers is conducted at a number of locations, but two of the longest-running are the Armor School and the Infantry School, both at Fort Benning, Georgia.". Can you tell me what it is?
Ans: the needs of the army

I know that the answer to the question "How far into the century was the initiative announced?" is in "In mid 2011, the Foundation announced in its new "Water, Sanitation, Hygiene Strategy Overview" that its funding now focuses primarily on sanitation, particularly in sub-Saharan Africa and South Asia, because access to improved sanitation is lowest in those regions. Their grant-making focus has been since 2011 on sanitation science and technology ("transformative technologies"), delivery models at scale, urban sanitation markets, building demand for sanitation, measurement and evaluation as well as policy, advocacy and communications.". Can you tell me what it is?
Ans: In mid 2011