Q3:Athlete Hannes Kolehmainen of Finland claimed four gold medals in the Olympic Games held in 1912 and 1920.For which event did he win the gold medal and break the world record at the 1912 Olympics?

• 问:芬兰田径选手科勒赫迈宁在1912年和1920年奥运会共获得四枚金牌，请问他在1912年奥运会哪项比赛中夺得金牌并打破世界纪录？