Question: Ryūichi Hiroki and Yash Chopra, have which mutual occupation?

Context paragraphs:
Ryūichi Hiroki: Ryūichi Hiroki (廣木 隆一 , Hiroki Ryūichi , born January 1, 1954) is a Japanese film director.  He won critical acclaim for "800 Two Lap Runners".  Film critic and researcher Alexander Jacoby has described Hiroki as "one of the modern Japanese cinema's most intelligent students of character".

Parampara (1993 film): Parampara (English: Tradition ) is a 1993 Indian Hindi romantic drama movie starring Aamir Khan, Sunil Dutt, Vinod Khanna, Ashwini Bhave, Ramya Krishna, Saif Ali Khan, Raveena Tandon, Neelam Kothari and Anupam Kher.  The film is produced by Firoz A. Nadiadwala and directed by Yash Chopra.  Aditya Chopra wrote the screenplay for the film.  The film was supposed to be Saif Ali Khan's debut however "Aashiq Awara" 1992 movie was his debut movie.The film was panned by the critics for its weak storyline, weak music and bad direction by Yash Chopra.  It was a commercial flop.  The movie was shot in the famous Indian boarding school, Mayo College.  The movie was coincidentally same story as another movie Kshatriya (film) which was released before this movie.  Both the movies were multistarers but failed to create business at the box office.  Sunil Dutt, Vinod Khanna and Raveena Tandon were the only actors who featured in both the movies.

Jab Tak Hai Jaan: Jab Tak Hai Jaan (English: "As Long as I Live", literally "as long, or as far, as there is life") is a 2012 Indian romantic drama film directed by Yash Chopra and written and produced by Aditya Chopra under their production banner, Yash Raj Films.  The movie is the first collaboration between Khan and Kaif, and the second between Khan and Sharma (they previously featured in the 2008 film "Rab Ne Bana Di Jodi").  Yash Chopra returned to directing eight years after "Veer-Zaara".  This was to be his final film before his death in October 2012, at age 80.  The background score and soundtrack was composed by A. R. Rahman, with lyrics from Gulzar.  The Film is loosely inspired on The end of the Affair by Graham Greene.

Dharmputra: Dharmputra is a 1961 Hindi film directed by Yash Chopra based on a novel of the same name by "Acharya Chatursen".  This is Yash's second directorial venture.  It was the first Hindi film to depict the partition of India, and Hindu fundamentalism.  Produced by his elder brother B.R. Chopra who was himself uprooted from Lahore, during the partition of India and established B.R. Films in Mumbai in 1956.  The film dealt with issues of issue of religious bigotry, fanaticism and communalism amidst the backdrop of the partition.  Two years earlier, Yash Chopra had made his debut with "Dhool Ka Phool" (1959), steeped in Nehruvian secularism, wherein a Muslim brings up an 'illegitimate' Hindu child and featured classic song, "Tu Hindu banega na Musalman banega, insaan ki aulaad hai, insaan banega".  The theme was reversed in this film as herein a Hindu family brings an illegitimate Muslim child.

Yash Chopra: Yash Raj Chopra (27 September 1932 – 21 October 2012) was an Indian film director and film producer, predominantly working in Hindi cinema.  Yash Chopra began his career as an assistant director to I. S. Johar and elder brother, B.R. Chopra.  He made his directorial debut with "Dhool Ka Phool" in 1959, a melodrama about illegitimacy, and followed it with the social drama "Dharmputra" (1961).

List of accolades received by Jab Tak Hai Jaan: "Jab Tak Hai Jaan" is a 2012 Indian romantic drama film directed by Yash Chopra and written and produced by Aditya Chopra under their production banner Yash Raj Films.  The film features Shahrukh Khan, Katrina Kaif and Anushka Sharma in lead roles, making it the first film to pair Khan and Kaif and the second collaboration between Khan and Sharma after "Rab Ne Bana Di Jodi".  It was Yash Chopra's fourth film to feature Shahrukh Khan in the lead role, the former returning as a director after eight years post "Veer-Zaara", which released in 2004.  "Jab Tak Hai Jaan" was Yash Chopra's last directorial venture before his death on 21 October 2012.  The film released during the six-day Diwali weekend that began on 13 November 2012.

Otoko no Isshō: Otoko no Isshō (娚の一生 ) is a slice of life romance "josei" manga series written and illustrated by Keiko Nishi.  It was published by Shogakukan on "Flowers" magazine and in four volumes compiling the chapters.  A live action romantic drama film adaptation was released on February 14, 2015.  It's directed by Ryūichi Hiroki and written by Hiroshi Saitō.  It stars Nana Eikura and Etsushi Toyokawa.

800 Two Lap Runners: 800 Two Lap Runners is a 1994 Japanese film directed by Ryūichi Hiroki starring Shunsuke Matsuoka and Eugene Nomura.  For director Hiroki, the film marks a transition from his early work in "pink film" to mainstream cinema.

It's Only Talk: It's Only Talk is a Japanese film, released in 2005 and is based on the prizewinning novel of the same title written by Akiko Itoyama and directed by Ryūichi Hiroki.

Kiiroi Zou: Kiiroi Zou (きいろいゾウ ) is a 2013 Japanese film directed by Ryūichi Hiroki.

Supporting paragraphs: Ryūichi Hiroki Yash Chopra
Answer: film director