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?
Sentence (from "Jan Pinkava"): 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".
Relevant evidence: Yes