Read the bio below and try to give details on william gruner 's: - sport - event - death place - death date - birth date - name - nationality - birth place Bio: 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 .
A:
- sport is long-distance running- event is marathon- death place is stockholm , sweden- death date is 15 february 1961- birth date is 6 may 1888- name is william gruner- nationality is swedish- birth place is stockholm , sweden