Question: Which of these Asian directors was behind the science fiction adventure film "Snowpiercer", Bong Joon-ho or Vincent Kok?

Context paragraphs:
Bong Joon-ho: Bong Joon Ho (, ] ; born September 14, 1969) is a South Korean film director and screenwriter.  His films include South Korean hits "Memories of Murder" (2003), based on a true-life serial murder case, monster movie "The Host" (2006), and his first English-language film, science fiction adventure "Snowpiercer" (2013).  His latest film is "Okja" (2017), a South Korean-American film, which competed for the "Palme d'Or" in the main competition section at the 2017 Cannes Film Festival.  "Okja" was subsequently released by Netflix on June 28, 2017.

All's Well, Ends Well 2009: All's Well, Ends Well 2009 () is a 2009 Hong Kong romantic comedy film directed by Vincent Kok.  It is the fourth instalment in the "All's Well, Ends Well" film series, the previous film being "All's Well, Ends Well 1997".

Barking Dogs Never Bite: Barking Dogs Never Bite (Korean: 플란다스의 개 , also known as "A Higher Animal" and "Dog of Flanders") is a 2000 South Korean dark comedy-drama film.  The film's original Korean title is a satirical take on "A Dog of Flanders", a European pet story that is very popular in parts of East Asia.  It is also the directorial debut of Bong Joon-ho, who would later go on to direct "Memories of Murder" in 2003, "The Host" in 2006, and "Snowpiercer" in 2013.

Hotel Deluxe: Hotel Deluxe (百星酒店) is a 2013 Hong Kong comedy film released in commemoration with the Lunar New Year of 2013.  The film was directed by Vincent Kok, his thirteenth as a director, and written by him along with Chan Mou Yin Anselm (credited as Anselm Chan), Steven Fung, and Poon Jun Lam.  Produced by Raymond Wong, "Hotel Deluxe" features many of the recurring cast from his "All's Well, Ends Well" film series.

Okja: Okja is a 2017 action-adventure film directed by Bong Joon-ho and co-written by Bong and Jon Ronson.  The film stars an ensemble cast headed by South Korean child actress Ahn Seo-hyun, alongside Hollywood actors Tilda Swinton, Paul Dano, Steven Yeun, Lily Collins, and Jake Gyllenhaal.

2013 Deauville American Film Festival: The 39th Deauville American Film Festival took place at Deauville, France from August 30 to September 8, 2013.  Steven Soderbergh's drama film "Behind the Candelabra" served as the opening night film. " Snowpiercer" by Bong Joon-ho was the closing night film of the festival.  The Grand Prix was awarded to "Night Moves" by Kelly Reichardt.

Snowpiercer: Snowpiercer (Hangul: 설국열차 ; Hanja: 雪國列車 ; RR: "Seolgungnyeolcha " ) is a 2013 English-language South Korean-Czech science fiction thriller film based on the French graphic novel "Le Transperceneige" by Jacques Lob, Benjamin Legrand and Jean-Marc Rochette.  The film is directed by Bong Joon-ho, and written by Bong and Kelly Masterson.  The film marks Bong's English-language debut; approximately 80% of the film was shot in English.

Vincent Kok: Vincent Kok Tak-Chiu (born 15 August 1966) is a Hong Kong actor, scriptwriter and film director.

House of Wolves (film): House of Wolves is a 2016 Hong Kong comedy film co-written and directed by Vincent Kok, who also appears in a supporting role in the film, and starring Francis Ng and Ronald Cheng.  The film was released on 21 January 2016.

Tokyo!: Tokyo!  is a 2008 French/Japanese/South Korean/German anthology film containing three segments written by three non-Japanese directors, all of which were filmed in Tokyo, Japan.  Michel Gondry directed "Interior Design", Leos Carax directed "Merde", and Bong Joon-ho directed "Shaking Tokyo".

Supporting paragraphs: Bong Joon-ho Vincent Kok
Answer: Bong