Question: What Pixar short written by the originator and co-director of Pixar's Oscar-winning 2007 film "Ratatouille" won an Academy Award for Best Animated Short Film in 1998?

Context articles: Jan Pinkava
Pixar Short Films Collection, Volume 2
(Otto)
La Luna (2011 film)
George &amp; A.J.
Wild Life (film)
The Dam Keeper
Paperman
Geri's Game
For the Birds (film)

Jan Jaroslav Pinkava (born 21 June 1963, in Prague) is a Czech American director and writer of the Pixar Oscar-winning 1997 short film "Geri's Game" and the originator and co-director of Pixar's Oscar-winning 2007 film "Ratatouille".
Pixar Short Films Collection Volume 2 is a 2012 DVD and Blu-ray compilation of the Pixar animated short films following the 2007 "Pixar Short Films Collection Volume 1" and the 1996 "Tiny Toy Stories".
 It features twelve shorts that were released from 2007 through 2012 and it includes some student films from Pixar's directors as bonus features.
 "Volume 2" was released on November 13, 2012, by Walt Disney Studios Home Entertainment.
(Otto) is a 2015 Dutch animated short film directed by Job Roggeveen, Joris Oprins and Marieke Blaauw, from the Dutch animation studio Job, Joris & Marieke.
 The film had its international premiere at the Toronto International Film Festival.
 (Otto) was chosen to be the official Dutch entry for the Academy Award Best Animated Short Film 2016.
 Job, Joris & Marieke's previous film A Single Life was nominated Academy Award for Best Animated Short Film at the 87th Academy Awards.
La Luna (IPA: /laˈluna/ [laˈluːna] , Italian for "The Moon") is a 2011 Pixar computer-animated short film, directed and written by Enrico Casarosa.
 The short premiered on June 6, 2011 at the Annecy International Animated Film Festival in France, and it was paired with Pixar's "Brave" for its theatrical release on June 22, 2012, being shown before the film's beginning.
 "La Luna" was released on November 13, 2012, on the "Brave" DVD and Blu-ray, and on a new "Pixar Short Films Collection, Volume 2", the second collection of Pixar's short films.
 "La Luna" was nominated for an Academy Award for Best Animated Short Film at the 84th Academy Awards.
George & A.J. is a short film created by Pixar which uses characters from the film "Up" to tell what Nurses George and A.J. did after Carl Fredricksen left with his house tied to balloons in the feature film.
 Instead of being released on DVD like "Partly Cloudy", "Dug's Special Mission", or any other Pixar short film, "George & A.J." was initially released on iTunes as an extra feature that came with a purchase of the film.
 It was later released to fans of Disney/Pixar on their Facebook page and later to the official Disney/Pixar YouTube page.
 It was later released on "Pixar Short Films Collection Volume 2".
 All of the animation is done in a limited "storyboard" style, with some objects moving by keyframes, while other things like characters and their mouths barely move at all; however, the characters' expressions and the story are still conveyed.
Wild Life is a 2011 Canadian animated short film by Wendy Tilby and Amanda Forbis.
 The film debuted at the 2011 Worldwide Short Film Festival in Toronto in June 2011 and online on January 6, 2012.
 The film was nominated for Best Animated Short Film at the 84th Academy Awards, and Best Animated Short Subject at the 39th Annie Awards as well as a Genie Award for Best Animated Short at the 32nd Genie Awards.
The Dam Keeper is a 2014 American animated short film directed by former Pixar art directors Robert Kondo and Daisuke Tsutsumi.
 It tells the story of Pig, an introverted youth who lives in a windmill and keeps a dark fog from engulfing his town.
 Although socially rejected by his peers, he is befriended by the artistic Fox.
 Kondo and Tsutsumi began developing the film while working on "Monsters University" and produced it through a Pixar co-op program.
 This is Tsutsumi's second short film, after 2011's "Sketchtravel", and Kondo's first directorial effort.
 Producers Megan Bartel and Duncan Ramsay were also employees at Pixar.
 The film received an Academy Award nomination for Best Animated Short Film.
Paperman is a 2012 American black-and-white computer-cel animated romantic comedy short film produced by Walt Disney Animation Studios and directed by John Kahrs.
 The short blends traditional animation and computer animation, and won both the Academy Award for Best Animated Short Film at the 85th Academy Awards and the Annie Award for Best Animated Short Subject at the 40th Annie Awards.
 "Paperman" was the first animated short film produced by Walt Disney Animation Studios to win an Academy Award since "It's Tough to Be a Bird" in 1970.
Geri's Game is a 1997 computer animated short film made by Pixar, written and directed by Jan Pinkava.
 Although Pixar had started out with a successful string of shorts in the 1980s, these were put on hold for most of the 1990s to focus on for-hire work, and development of the feature films "Toy Story" and "A Bug's Life"; "Geri's Game" was the first Pixar short since the 1989 short "Knick Knack".
 The film won an Academy Award for Best Animated Short Film in 1998.
For the Birds is a 2000 computer animated short film produced by Pixar and directed by Ralph Eggleston.
 It won the Academy Award for Best Animated Short Film in 2001.
 It premiered on June 5, 2000, at the Annecy International Animated Film Festival in France, and was shown alongside the theatrical release of the 2001 Disney/Pixar feature film "Monsters, Inc."