Question: Yen was born in Guangzhou, China. His mother, Bow-sim Mark, is a Fu Style Wudangquan (internal martial arts) and Tai Chi grandmaster, while his father, Klyster Yen (Zhen Yun Long ), is a newspaper editor. When he was two years old, his family moved to Hong Kong and then to Boston when he was 11. His younger sister, Chris Yen, is also a martial artist and actress, and appeared in the 2007 film Adventures of Johnny Tao: Rock Around the Dragon.

Donnie Yen was considered as one of the premiere action choreographers in the world, having been invited by Hollywood to choreograph blockbusters such as Blade II, Highlander: Endgame, and Shanghai Knights. In Asia, he is the action choreographer for most of his movies and has won multiple awards for his action choreography.  Yen's most famous works include films such as Flash Point and SPL: Sha Po Lang. He has mentioned that the main differences in filmmaking in Asia and Hollywood are with regards to freedom and control. In Asia, the action choreographer takes over the scene during the fight scene. This means that for action scenes filmed in Asia, the choreographer becomes the director and is in full control over camera placements, camera angles, and the relationship between the drama and the action; therefore the main director is not needed at all. While in Hollywood, on the other hand, Yen explains that the action choreographer simply choreographs the actions with the director, who still maintains full control of such settings and camera angles.  Yen's work as a choreographer won him "Best Action Choreography" awards at the 27th Hong Kong Film Awards and the 2008 and 2011 Golden Horse Film Awards.  Yen was the fight choreographer for the 2010 film Legend of the Fist: The Return of Chen Zhen. For this film, Yen mentioned that he included Jeet Kune Do elements as a tribute to Bruce Lee, who played Chen Zhen in the 1972 film Fist of Fury. Furthermore, he incorporated many MMA elements in the film, coupled with the utilisation of Wing Chun. Yen also stated that the concept behind Bruce Lee's Jeet Kune Do is similar to that of MMA, hence the incorporation of many forms of martial arts was a necessity in the film. He won the Hong Kong Film Award for Best Action Choreography 4 times, being one of the most frequent winners of this coveted award. He has won awards for his choreography in films such as The Twins Effect, SPL: Sha Po Lang, Flash Point, and Kung Fu Jungle. Although uncredited, Donnie Yen was also action co-choreographer for Hong Kong Film Award winners such as Ip Man, Ip Man 2, and Bodyguards and Assassins.

Using a quote from the above article, answer the following question: What else is interesting about his choreography?
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Answer: For this film, Yen mentioned that he included Jeet Kune Do elements as a tribute to Bruce Lee,


Question: Morbid Angel is an American death metal band based in Tampa, Florida formed in 1983 by guitarist and sole remaining original member Trey Azagthoth, vocalist and bassist Dallas Ward, and drummer Mike Browning. Widely considered as one of the most influential bands in the genre and important in the transition of death metal from its thrash metal roots, they were one of the first bands to incorporate guttural vocals, up-tempo blast beats, multiple tempo changes and dark atmosphere. They have been described as one of "the most influential and emulated bands in death metal", alongside Obituary and Cannibal Corpse, and have been cited as an influence by many later bands. They were also the first death metal band to experience mainstream success in connection with being signed to Giant Records in 1992, heavy rotation of their music videos on MTV, and having the music video for the song "God of Emptiness" shown on an episode of Beavis and Butt-head.

Morbid Angel was formed in 1983 in Tampa, Florida by guitarist Trey Azagthoth and drummer/vocalist Mike Browning. The band made their debut in 1987 on the New Renaissance Records record label. They recorded their debut album, Abominations of Desolation, in 1986, but the band was unsatisfied with the final product and it remained unreleased until 1991, printing 10,000 copies. In the early stages of their career the band developed a reputation for "gruesome stage antics."  In 1986, David Vincent joined the band, replacing Michael Manson and Sterling von Scarborough as vocalist and bassist respectively. Fellow Terrorizer drummer Pete Sandoval soon followed. Their first studio album, Altars of Madness, was released in 1989, and is regarded by many as one of the most important death metal albums of all time. It is also considered the first true death metal album. Music journalist Jason Birchmeier writes that:  Few albums struck a chord within the ears and minds of the late-'80s underground metal scene like Morbid Angel's Altars of Madness did at the end of the decade, setting a new precedent for metal bands to reach. With the arguable exception of Chuck Schuldiner's Death, never before had a heavy metal band carried their lightning-fast guitar riffs and equally spellbinding guitar solos into such horrific territory. Venom and Slayer redefined the extent to which a metal band could align itself with all things evil during the beginning of the decade, but Morbid Angel made these two groups sound like children's music compared to the Florida-based group's assaulting death metal sounds and their blasphemous lyrics.

Using a quote from the above article, answer the following question: How long before someone was replaced in the band?
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Answer:
In 1986, David Vincent joined the band, replacing Michael Manson