question: Which film whose director is younger, Yalkae, A Joker In High School or Mostar Round-Trip?
context: [["Yalkae, a Joker in High School", ["Yalkae, a Joker in High School is a 1977 South Korean comedy film starring Lee Seung- hyeon, Kim Jeong- hun and Hah Myung- joong, and directed by Seok Rae-myeong.", "Based on Cho Heun-pa's bestselling novel\" A Legend of Urchins( Yalgaejeon)\", it is the original movie that spawned the wildly popular\" Yalkae series\" in the 1970s and succeeded in drawing an audience of 250,000 during its impressive theatrical run."]], ["Love Inventory", ["Love Inventory aka Reshimat Ahava is a 2000 Israeli documentary film, written and directed by David Fisher and produced by Yahaly Gat and David Fisher.", "This is the First film in the family trilogy created by director David Fisher followed by\" Mostar Round- Trip\"( 2011) and\" Six Million and One\"( 2011)."]], ["Northwest High School", ["Northwest High School or North West High School may refer to:"]], ["Mostar Round-Trip", ["Mostar Round- Trip( Hebrew: \u05de\u05d5\u05e1\u05d8\u05d0\u05e8 \u05d4\u05dc\u05d5\u05da \u05d5\u05e9\u05d5\u05d1) is a 2011 Israeli documentary film, a Fisher Features Ltd. release directed and produced by David Fisher.", "The film follows his son, Yuval and his classmates who are studying in an international high- school, United World College, in Mostar, Bosnia and Herzegovina.", "The film also exposes the recuperating city, which has been greatly damaged during the Bosnian War and is now geographically divided between the Bosniak and Croat populations.", "This is the second film in the family trilogy created by Fisher that started with the critically acclaimed Love Inventory( 2000) and completed by Six Million and One( 2011)."]], ["Round trip", ["Round trip may refer to:"]], ["Northside High School", ["Northside High School or North Side High School or Northside Christian School or similar can refer to:"]], ["David Fisher (filmmaker)", ["David Fisher( born in Petah Tiqva, Israel, October 14, 1956) is an Israeli documentary film director, producer and lecturer.", "In 1999- 2008, he was Director General of The New Fund for Cinema and Television( NFCT)."]], ["Six Million and One", ["Six Million and One( Hebrew: \u05e9\u05d9\u05e9\u05d4 \u05de\u05d9\u05dc\u05d9\u05d5\u05df \u05d5\u05d0\u05d7\u05d3) is a 2011 Israeli documentary film, a Fisher Features Ltd. release, written directed and produced by David Fisher.", "This is the third and final film in the family trilogy created by Fisher after\" Love Inventory\"( 2000) and\" Mostar Round- Trip\"( 2011)."]], ["Joker in the Pack (disambiguation)", ["Joker in the Pack is a 2007 novel by Neeraj Pahlajani and Ritesh Sharma.", "Joker in the Pack may also refer to:"]], ["Seok Rae-myeong", ["Seok Rae-myeong( May 19, 1936 \u2013 May 20, 2003) is a South Korean film director.", "Seok made his directorial debut with\" Until Next Time\"( 1972).", "After the success of his film,\" Yalkae, a Joker in High School\"( 1977), he directed\" Mischief's Marching Song\"( 1977),\" Prankster of Girl's High School\"( 1977) and\" Our High School Days\"( 1978), leading a boom in teen movies during the late 1970s.", "In 2009,\" Yalkae, a Joker in High School\" is issued as part of the third series of Korean film stamps by Korea Post, which also includes\" The Road to SampoNever Ever Forget Me\" and\" Chilsu and Mansu\"."]]]
supporting_facts: [["Yalkae, a Joker in High School", 0], ["Mostar Round-Trip", 0], ["Seok Rae-myeong", 0], ["David Fisher (filmmaker)", 0]]
evidences: [["Yalkae, a Joker in High School", "director", "Seok Rae-myeong"], ["Mostar Round-Trip", "director", "David Fisher"], ["Seok Rae-myeong", "date of birth", "May 19, 1936"], ["David Fisher (filmmaker)", "date of birth", "October 14, 1956"]]
answer: Mostar Round-Trip