Answer the following question: Facts: - sport: artistic gymnastics - caption: ralf buchner in 1990 - height: 1.63 m ftin on - club: ask vorwarts potsdam - birth date: 31 august 1967 - weight: 56 kg lb on - image size: 280px - image: bundesarchiv bild 183-1990-1215-025 , berlin , ralf buchner.jpg - birth place: berlin , germany Based on these bullet points, write a short biography describing the life of ralf buchner .
Answer:
ralf buchner -lrb- born 31 august 1967 -rrb- is a retired german gymnast .he competed at the 1988 and 1992 summer olympics and finished in second and fourth place with the east german team , respectively .his best individual achievement was ninth place in the vault in 1988 .he won a gold and a bronze medal at the world championships in 1991 , as well as four medals at the european championships in 1990 , 1992 and 1994 .