Question: Who was the director of the 2010 Hong Kong biographical martial arts film in which Ashton Chen played the role of a martial arts student?

full_context: Document 1: Ashton Chen Yong Zhao: Ashton Chen Yong Zhao (Chinese: 陈勇肇) (born 9 September 1989) is a male Singaporean badminton player. He was part of the SEA Games men's team that won silver medal in the 2007 edition and bronze medals in the 2009, 2011 editions. In 2012, he won the men's singles title at the Singaporean National Badminton Championships. At the BWF event tournaments, he has won the men's singles title at the 2007 Waikato and 2011 Smiling Fish Thailand International tournament, and in the men's doubles, he won the 2011 Maldives International tournament. Ashton quits the national team on 11 April 2014 after playing his final game for Singapore in the Djarum Superliga 2014 tournament.
Document 2: Ip Man 3: Ip Man 3 is a 2015 Hong Kong biographical martial arts film directed by Wilson Yip, produced by Raymond Wong and written by Edmond Wong with action choreography by Yuen Woo-ping. It is the third in the "Ip Man" film series based on the life of the Wing Chun grandmaster Ip Man and features Donnie Yen reprising the title role. The film also stars Mike Tyson, and Yip Man's pupil Bruce Lee is portrayed by Danny Chan. Principal photography commenced in March 2015 and ended in June that year.
Document 3: Chiu Chi-ling: Chiu Chi Ling (; born 1943) is an actor that appears mostly in Kung Fu style movies produced in Hong Kong. He also teaches Hung Gar Kung Fu at Chiu Chi Ling Hung Gar Kung Fu Association, a San Francisco-based martial arts school he founded, and at the old Chiu Family Kwoon in Hong Kong. Every year he visits his students and grand students around the world and organizes worldwide Kung Fu tournaments. The Kung Fu lineage he is part of was passed down directly from southern shaolin temple and carries names like Hung Hei Gung and Wong Fei Hung.
Document 4: Ip Man 2: Ip Man 2 (also known as Ip Man 2: Legend of the Grandmaster) is a 2010 Hong Kong biographical martial arts film loosely based on the life of Ip Man, a grandmaster of the martial art Wing Chun. A sequel to the 2008 film "Ip Man", "Ip Man 2" was directed by Wilson Yip and stars Donnie Yen, who reprises the leading role. Continuing after the events of the earlier film, the sequel centers on Ip's movements in Hong Kong, which is under British colonial rule. He attempts to propagate his discipline of Wing Chun, but faces rivalry from other practitioners, including the local master of Hung Ga martial arts.
Document 5: The Grandmaster (film): The Grandmaster is a 2013 Hong Kong-Chinese martial arts drama film based on the life story of the Wing Chun grandmaster Ip Man. The film was directed and written by Wong Kar-wai and stars Tony Leung as Ip Man. It was released on 8 January 2013 in China. It was the opening film at the 63rd Berlin International Film Festival in February 2013. The film was selected as part of the 2013 Hong Kong International Film Festival. The Weinstein Company acquired the international distribution rights for the film. The film was selected as the Hong Kong entry for the Best Foreign Language Film at the 86th Academy Awards, making the January shortlist, but did not get the nomination. The film was nominated for Best Cinematography (Philippe Le Sourd) and Best Costume Design (William Chang Suk Ping) at the 86th Academy Awards.
Document 6: The Legend Is Born: Ip Man: The Legend Is Born – Ip Man is a 2010 Hong Kong biographical martial arts film based on the early life of the Wing Chun grandmaster Ip Man, directed by Herman Yau and starring Dennis To in the titular role. Though not made in collaboration with Wilson Yip's "Ip Man" or "Ip Man 2", "The Legend is Born" features several actors who appeared in Yip's films, including Sammo Hung, Louis Fan, and Chen Zhihui. The film also features a special appearance by Ip Chun, the son of Ip Man.
Document 7: Sun Honglei: Sun developed an interest in acting and performances at a young age. He often skipped school to learn breakdancing on the streets and eventually gave up his studies entirely to pursue dancing as a career, eventually performing with a modern dance troupe for several years. Later, Sun became a popular local nightclub singer and host before going into acting. In 1995, Sun attended the Central Academy of Drama, where he graduated in 1997. He has since gone on to star in numerous TV dramas and films, winning many awards for his stage work. Sun is probably best known to Asian cinema fans for his supporting performances in "Seven Swords", "Triangle" and "Blood Brothers". Since October 2011, Sun has played the starring role in the popular Chinese series 'Nanren Bang' (男人帮), portraying urban romantic life from a male perspective.
Document 8: Shaun Chen: Shaun Chen (, born "Tey Kim Soon", 3 November 1978) is a Malaysia - born actor based in Singapore. Chen is most notable for starring in the long-running drama series "Holland V" and for playing villains in several drama series. He received his first award, the Rocket Award, at the Star Awards 2015 Show 1, for being the most improved artiste in 2014. He starred as the lead character in both "Blessings" and "". He further clinched the Best Actor award for "" and was voted into the Top 10 Most Popular Male Artistes list at the Star Awards 2015 Show 2.
Document 9: Ip Man (film series): Ip Man is a series of Hong Kong biographical martial arts films starting with "Ip Man" in 2008 and followed by two sequels – "Ip Man 2" (2010) and "Ip Man 3" (2015). All three films are directed by Wilson Yip, written by Edmond Wong, produced by Raymond Wong and star Donnie Yen. Mandarin Films released the first two films in Hong Kong, which earned more than $37 million with a budget of around $24.6 million. The films are based on the life events of the Wing Chun master of the same name. Donnie Yen has mentioned each film has a unique theme, that the first "Ip Man" film was about "Survival", "Ip Man 2" focuses on "Making a Living and Adaptation", while "Ip Man 3" focuses on "Life" itself.
Document 10: Ip Man (film): Ip Man is a 2008 Hong Kong biographical martial arts film based on the life of Ip Man, a grandmaster of the martial art Wing Chun and teacher of Bruce Lee. The film focuses on events in Ip's life that supposedly took place in the city of Foshan during the Sino-Japanese War. The film was directed by Wilson Yip, and stars Donnie Yen as Ip Man, with martial arts choreography by Sammo Hung. The supporting cast includes Simon Yam, Lynn Hung, Lam Ka-tung, Xing Yu, Hiroyuki Ikeuchi and Tenma Shibuya.
Document 11: Dennis To: Dennis To Yu-hang (born 1 January 1981) is a Hong Kong martial artist and actor. He started his career as a wushu practitioner and won several awards at various competitions, including a silver medal at the 2002 Asian Games and a gold medal at the 2005 East Asian Games. To became an actor in 2007 and started off by playing minor roles in "Ip Man" (2008), "Bodyguards and Assassins" (2009) and "Ip Man 2" (2010). He is best known for his role as the Wing Chun grandmaster Ip Man in the 2010 film "The Legend Is Born – Ip Man".
Document 12: Ashton Chen: Ashton Chen Xiaolong (born 6 January 1988 in Dengfeng, Zhengzhou, Henan), also known by his stage name Shi Xiaolong ("Sik Siu-Lung" in Cantonese), is a Chinese actor and martial artist. He is also credited as Xiaolung, Tommy Sik, Shi Xiao-Lung, Shi Xiao-Long, Shi Shao-Long, Shieh Shiao-Long, Xi Xiao-Long, Sik Siu-Loong, and S. L. Sik on some of his films. He has been a disciple of Shi Yongxin, the current abbot of Shaolin Temple, since he was two years old. Originally named "Chen Xiaolong", Chen was given a dharma name—Shi Xiaolong—by the abbot. He was taught martial arts by his father and Shi Yongxin at a young age. He gained attention in the entertainment industry after his performance at the International Shaolin Kung Fu Festival in Zhengzhou at the age of four. He became a child actor in China and achieved great success in films such as the 1994 martial arts comedy "" (新乌龙院). In 2003, he stopped acting and went to study in the United States. In 2005, he returned to China and starred as Zhan Zhao in the television series "Young Justice Bao III". In 2007, he continued his studies in the United States and graduated from high school in 2008 from the prestigious Performing Children's School (PCS) in New York City. He has continued his acting career in China since then. In 2010, Chen played one of Ip Man's students in the martial arts film "Ip Man 2".
Document 13: Jackie Chan: Chan Kong-sang, SBS, MBE, PMW, (陳港生 ; born 7 April 1954), known professionally as Jackie Chan, is a Hong Kong martial artist, actor, film director, producer, stuntman, and singer. In his movies, he is known for his acrobatic fighting style, comic timing, use of improvised weapons, and innovative stunts, which he typically performs himself. He has trained in Kung Fu and Hapkido. He has been acting since the 1960s and has appeared in over 150 films.
Document 14: Donnie Yen: Donnie Yen (born 27 July 1963), also known as Yen Chi Tan (甄子丹), is a Hong Kong actor, martial artist, film director, producer, action choreographer, and multiple-time world wushu tournament champion.
Document 15: Ip Man: Ip Man, also known as Yip Man, (; 1 October 1893 – 2 December 1972), was a Chinese martial artist, and a master teacher of Wing Chun. He had several students who later became martial arts masters in their own right. His most famous student was Bruce Lee.
ground_truth: Wilson Yip