Question: Yang Xuwen is best known for portraying Guo Jing in a television series directed by who ?

Context paragraphs:
Ouyang Feng: Ouyang Feng is a fictional character in the wuxia novel "The Legend of the Condor Heroes" and its sequel, "The Return of the Condor Heroes", by Jin Yong.  As the "Western Venom" (西毒) of the Five Greats (五绝), the top five champions of the first martial arts contest on Mount Hua, Ouyang Feng is best known for his signature martial arts technique, the 'Toad Skill' (蛤蟆功), and his expertise in toxicology.  In the first novel, he is depicted as a ruthless villain who resorts to all sorts of unscrupulous means to achieve his goal of becoming the most powerful martial artist in the "jianghu".  He attempts to seize the "Nine Yin Manual", a book detailing powerful martial arts and inner energy techniques, but is tricked into practising skills based on a corrupted version of the manual.  He becomes insane eventually as a consequence, but ironically, his prowess in martial arts also increases tremendously.  In the sequel, Ouyang Feng has become insane, however, he learns to be kind to others, for example, letting Yang Guo call him Father.  Later in the novel, he dies in the midst of laughter and forgotten past feuds alongside his rival, Hong Qigong.  He is buried on Mount Hua beside Hong Qigong by his godson, Yang Guo, who succeeds him as the "Western Eccentric" of the new generation of the Five Greats.

Julian Cheung: Julian Cheung Chi-lam (born 27 August 1971), better known by his stage name Chilam, is a Hong Kong singer and actor.  Cheung is popularly known for his role as Guo Jing in the 1994 TV series adaptation of the "Wuxia" novel, "The Legend of the Condor Heroes", and also as Chi-Kin from the TVB drama "Cold Blood Warm Heart" (1996).

Lost City in Snow Heaven: Lost City in Snow Heaven, also known as Xue Yu Mi Cheng, is a 2005 Chinese fantasy-action television series directed by Lai Shui-ching, Yu Ming-sang and Yang Zhiqian, starring Vincent Zhao and Ning Jing in the leading roles.  There is also a movie called “Lost City In Snow Heaven”.  However, though 'Lost City In Snow Heaven' is marketed as a movie, it is in fact a scaled-down version of the Chinese television series.

Hong Qigong: Hong Qi, better known as Hong Qigong, is a fictional character in the wuxia novel "The Legend of the Condor Heroes" and its sequel, "The Return of the Condor Heroes", by Jin Yong.  Best known for his most powerful martial arts (the 'Eighteen Dragon-Subduing Palms' and the 'Dog Beating Staff Technique'), Hong Qigong is the chief of the Beggars' Sect and the "Northern Beggar" of the Five Greats.  He is nicknamed "Nine Fingered Divine Beggar" after he severs one of his fingers to remind himself to be more time conscious as he has once failed a mission after overindulgence in fine cuisine.  He plays a supporting role in the first novel by imparting his skills to Guo Jing and Huang Rong.  Huang Rong succeeds him as the Beggars' Sect's chief.  Although he appears as a happy-go-lucky old beggar who idles his time away, he actually uses his skills to help those in need and perform chivalrous deeds.

The Legend of the Condor Heroes (2017 TV series): The Legend of the Condor Heroes is a 2017 Chinese television series adapted from Louis Cha's novel of the same title and a remake of the 1983 Hong Kong television series based on the same novel.  The series was directed by Jeffrey Chiang and starred Yang Xuwen, Li Yitong, Chen Xingxu and Meng Ziyi in the lead roles.  It started airing on Dragon TV in mainland China on 9 January 2017, and on TVB Jade in Hong Kong on 8 May 2017.

Li Yapeng: Li Yapeng (Traditional Chinese: 李亞鵬; Simplified Chinese: 李亚鹏; born September 27, 1971) is a Chinese actor.  He starred in two CCTV television adaptations of Louis Cha's "Wuxia" novels; playing Linghu Chong in the 2000 series, "Laughing in the Wind", and Guo Jing in the 2003 series "The Legend of the Condor Heroes".

God of War, Zhao Yun: God of War, Zhao Yun (Chinese: ; Korean: 무신조자룡 , lit.  "Martial Deity Zhao Zilong") is a 2016 Chinese television series directed by Cheng Lidong and produced by Zhejiang Yongle Entertainment Co., Ltd.  The series starred cast members from mainland China, South Korea and Taiwan: Lin Gengxin, Im Yoon-ah, Kim Jeong-hoon, Jia Qing, Godfrey Gao, Guo Dongdong, Meng Ziyi, Nazha, Yan Yikuan, Zhao-Han Yingzi, Fan Yulin, Collin Chou and Sun Xiaoxiao.  The story is loosely adapted from the 14th-century Chinese classical novel "Romance of the Three Kingdoms", with Zhao Yun (Zhao Zilong) as the main character.  It was first aired on Hunan TV from 3 April to 7 May 2016.

Guo Pu: Guo Pu (; AD 276324), courtesy name Jingchun (景純 ), was a Chinese writer and scholar of the Eastern Jin period, and is best known as one of China's foremost commentators on ancient texts.  Guo was a Taoist mystic, geomancer, collector of strange tales, editor of old texts, and erudite commentator.  He was the first commentator of the "Shan Hai Jing" and so probably, with the noted Han bibliographer Liu Xin, was instrumental in preserving this valuable mythological and religious text.  Guo Pu was the well educated son of a governor.  He was a natural historian and a prolific writer of the Jin dynasty.  He is the author of "The Book of Burial", the first-ever and the most authoritative source of fengshui doctrine and the first book to address the concept of Fengshui in the history of China, making Guo Pu the first person historically to define Fengshui, and therefore, Guo Pu is usually called the father of Fengshui in China.

Mao Zedong (TV series): Mao Zedong () is a 2013 Chinese epic biographical television series which dramatises the life of Mao Zedong, the father of the People's Republic of China.  it was directed by Gao Xixi, and starring Tang Guoqiang, Liu Jing, Guo Lianwen, and Wang Wufu.  The television series is released in 2013 to mark the 120th anniversary of the birth of Mao Zedong.

Yang Xuwen: Yang Xuwen (; born 2 April 1994) is a Chinese actor, best known in television series for portraying Guo Jing in "The Legend of the Condor Heroes" (2017) amd Qing Long in "Noble Aspirations" (2016).

Supporting paragraphs: Yang Xuwen The Legend of the Condor Heroes (2017 TV series)
Answer: Jeffrey Chiang