Question: Facts: - sport: long-distance running - event: marathon - death place: stockholm , sweden - death date: 15 february 1961 - birth date: 6 may 1888 - name: william gruner - nationality: swedish - birth place: stockholm , sweden Based on these bullet points, write a short biography describing the life of william gruner .
Answer:
william gruner -lrb- 6 may 1888 -- 15 february 1961 -rrb- was a swedish long-distance runner .he competed in the marathon at the 1912 and 1920 summer olympics .