"Gilmore Girls" is an American comedy-drama television series created by Amy Sherman-Palladino.
 Sherman-Palladino shares executive producer duties with David S Rosenthal, Gavin Polone, Daniel Palladino.
 It is produced by Dorothy Parker Drank Here Productions, Hofflund/Polone and Warner Bros.
 Television.
 The show follows single mother Lorelai Gilmore (Lauren Graham) and her daughter Rory Gilmore (Alexis Bledel) in the fictional town of Stars Hollow, Connecticut, a close-knit small town with many quirky characters, located roughly thirty minutes south of Hartford.
Gilmore Girls: A Year in the Life is an American web television series on the streaming service Netflix.
 It is a sequel to "Gilmore Girls", an American comedy-drama television series created by Amy Sherman-Palladino and starring Lauren Graham and Alexis Bledel, which ran from 2000 to 2007 on The WB and The CW.
Love and Marriage is an American situation comedy television series starring Anthony Denison and Patricia Healy as a New York working couple trying to raise a family.
 The series premiered September 28, 1996 on Fox as the first series created by Amy Sherman-Palladino (before her marriage to Daniel Palladino), who would later go on to create "Gilmore Girls" and "Bunheads".
 The show was canceled after two episodes.
Helen Pai is an American television writer, director, and producer.
 Member of the Dorothy Parker Drank Here Productions, Pai is known as a close friend of Amy Sherman-Palladino and coproducer of the television series "Gilmore Girls" and "Bunheads".
 "Gilmore Girls" character Lane Kim was modeled by Amy Sherman-Paladino loosely after Helen Pai.
Daniel Palladino is one of the producers of the American animated sitcom "Family Guy".
 Palladino is also a former producer, writer, and director for the American dramedy "Gilmore Girls, "he executive produced "The Return of Jezebel James", and was a consulting producer, writer, and director for the sitcom "Bunheads."
 He is married to television writer and producer Amy Sherman-Palladino, the creator of "Gilmore Girls, The Return of Jezebel James", and "Bunheads".
"Wedding Bell Blues" is the thirteenth episode of the fifth season of the American comedy-drama series "Gilmore Girls" and the show's 100th episode overall.
 Written and directed by series creator Amy Sherman-Palladino, the episode was originally broadcast on The WB in the United States on February 8, 2005.
 The episode features the renewal of vows by Emily (Kelly Bishop) and Richard Gilmore (Edward Herrmann).
 Their daughter Lorelai Gilmore (Lauren Graham) and their granddaughter Rory Gilmore (Alexis Bledel) serve as maid of honor and best man, respectively.
 "Wedding Bell Blues" received positive reviews from television critics.
Tragedy (from the Greek: τραγῳδία , "tragōidia" ) is a form of drama based on human suffering that invokes an accompanying catharsis or pleasure in audiences.
 While many cultures have developed forms that provoke this paradoxical response, the term "tragedy" often refers to a specific tradition of drama that has played a unique and important role historically in the self-definition of Western civilisation.
 That tradition has been multiple and discontinuous, yet the term has often been used to invoke a powerful effect of cultural identity and historical continuity—"the Greeks and the Elizabethans, in one cultural form; Hellenes and Christians, in a common activity," as Raymond Williams puts it.
Amy Sherman-Palladino (born Amy Sherman) is an American television writer, director, and producer.
 The founder of Dorothy Parker Drank Here Productions, she is best known as the creator of the television series "Gilmore Girls", "Bunheads", and "The Marvelous Mrs. Maisel".
Emily Gilmore is a fictional character who appears in the American comedy-drama television series "Gilmore Girls" (2000 – 2007) and its revival "" (2016) as the matriarch of the eponymous Gilmore family.
 Portrayed by actress Kelly Bishop, the character was created by series creator Amy Sherman-Palladino in order to add a more tragic element to the show's comedic nature.
 Emily has had a complicated relationship with her daughter Lorelai ever since the character runs away from home upon giving birth to her daughter Rory at age 16.
 They remain estranged for several years until Lorelai asks her parents to help pay for Rory's schooling, to which Emily agrees on the condition that her daughter and granddaughter visit her and her husband Richard for dinner every Friday evening.
Gilmore Girls is an American comedy-drama television series, created by Amy Sherman-Palladino and starring Lauren Graham and Alexis Bledel.
 The show debuted on October 5, 2000 on The WB and became a flagship series for the network.
 "Gilmore Girls" originally ran for seven seasons, with the final season moving to The CW, and ended its run on May 15, 2007.

Question: What form of drama based on human suffering was added to Gilmore Girls by Amy Sherman-Palladino?
Answer: Tragedy