You will be given a passage, and your task is to generate a Yes/No question that is answerable based on the given passage.

[Q]: The Beatles built their reputation playing clubs in Liverpool and Hamburg over a three-year period from 1960, with Stuart Sutcliffe initially serving as bass player. The core trio of Lennon, McCartney and Harrison, together since 1958, went through a succession of drummers, including Pete Best, before asking Starr to join them in 1962. Manager Brian Epstein moulded them into a professional act, and producer George Martin guided and developed their recordings, greatly expanding the group's popularity in the United Kingdom after their first hit, ``Love Me Do'', in late 1962. They acquired the nickname ``the Fab Four'' as Beatlemania grew in Britain over the next year, and by early 1964 became international stars, leading the ``British Invasion'' of the United States pop market. From 1965 onwards, the Beatles produced increasingly innovative recordings, including the albums Rubber Soul (1965), Revolver (1966), Sgt. Pepper's Lonely Hearts Club Band (1967), The Beatles (also known as the ``White Album'', 1968) and Abbey Road (1969). After their break-up in 1970, they each enjoyed success as solo artists. Lennon was shot and killed in December 1980, and Harrison died of lung cancer in November 2001. McCartney and Starr remain musically active.
[A]: are there any of the beatles still alive?


[Q]: Flashbacks reveal that his wife (Salli Richardson) and daughter (Willow Smith) died in a helicopter accident during the chaotic evacuation of Manhattan, prior to the military-enforced quarantine of the island in 2009, when Neville stayed behind on the island as military personnel. Neville's only mitigation for his loneliness is his German Shepherd named Samantha, a.k.a. Sam (given to him by his daughter as a puppy to protect him before she died in the helicopter crash), interaction with mannequins he has set up as patrons at a video store, and recordings of old television broadcasts. At night, he barricades himself and Sam inside his heavily fortified Washington Square Park home to hide from the Darkseekers. One day, while waiting for survivors, Sam follows a deer into a dark building. Neville cautiously goes in after her and finds the deer's corpse along with Sam, but the building is infested by a colony of Darkseekers. Both manage to escape unharmed and the attacking Darkseekers are killed by the sunlight.
[A]: did willow smith play in i am legend?


[Q]: An unlisted public company is a public company that is not listed on any stock exchange. Though the criteria vary somewhat between jurisdictions, a public company is a company that is registered as such and generally has a minimum share capital and a minimum number of shareholders. Each stock exchange has its own listing requirements which a company (or other entity) wishing to be listed must meet. Besides not qualifying to be listed, a public company may choose not to be listed on a stock exchange for a number of reasons, including because it is too small to qualify for a stock exchange listing, does not seek public investors, or there are too few shareholders for a listing. There is a cost to the listed entities, in the listing process and ongoing costs as well as in compliance costs such as the maintenance of a company register.
[A]:
is it necessary for a public company to be listed?