Please answer the following question: Facts:   - sport: rowing    - caption: harald punt in 1975      - birth date: y 18 february 1952    - image size: 260px    - image: harald punt 1975.jpg   Based on these bullet points, write a short biography describing the life of harald punt .
A:
harald punt -lrb- born 18 february 1952 -rrb- is a retired dutch rower who won three silver medals at the world lightweight rowing championships in 1974 , 1978 and 1979 in the single and double sculls -lrb- with roel michels -rrb- .punt is a boatbuilder and speaks dutch and german .after retiring from competitions he worked as a rowing coach , particularly with andreas and irene schmelz .