[Q]: PSRB1919+21 is a pulsar with a period of 1.3373 seconds and a pulse width of 0.04 seconds. Discovered by Jocelyn Bell Burnell and Antony Hewish on November 28, 1967, it is the first discovered radio pulsar. The power and regularity of the signals were briefly thought to resemble an extraterrestrial beacon, leading the source to be nicknamed LGM-1 (for "little green men"). Antony Hewish and Jocelyn Bell Burnell discovered the PSR B1919+21 pulsar, which at first resembled an extraterrestrial beacon.
[A]: Yes

[Q]: 11 Flowers () is a 2011 film directed by Wang Xiaoshuai centered on a boy named Wang Han who loses his white shirt which shows that he is his school's best gymnast. The loss of the shirt is to take on greater metaphorical meaning as the film progresses which is inspired by the director's own experience as a youth during the cultural revolution and the more general confusion of childhood. The movie was inspired by the director's experience as a youth during the american revolution.
[A]: No

[Q]: The Asko Concerto is a concerto for chamber orchestra by the American composer Elliott Carter. The work was commissioned by the Dutch chamber group Asko Ensemble, for which the piece is titled. It was composed in January 2000 and was first performed in Concertgebouw, Amsterdam on April 26, 2000, by the Asko ensemble under the conductor Oliver Knussen. The piece is dedicated to Asko/Schonberg. The Asko Concerto was first performed before April 27th, 2000
[A]: Yes

[Q]: The Lady Vanishes is a 1979 English comedy mystery film directed by Anthony Page. Its screenplay by George Axelrod was based on the novel "The Wheel Spins" by Ethel Lina White (18761944). It stars Elliott Gould as Robert, Cybill Shepherd as Amanda (Iris), Angela Lansbury as Miss Froy, Herbert Lom, Arthur Lowe and Ian Carmichael as Charters and Caldicott. Critics consider The Lady Vanishes to be a classic film.
[A]:
It's impossible to say