Question

존이 여의도 공원에서 뛰었어요 -에서 can be used to mark the location where an action takes place. When -에서 used in such function is replaced by -을/를 the meaning of the clause changes. While -에서 marks the place where the action was performed, -을/를 signals that the action was performed across the mentioned space from start to finish.

Accepted Answer

John ran in Yeouido Park

Front	존이 여의도 공원에서 뛰었어요
Back	John ran in Yeouido Park
Notes	-에서 can be used to mark the location where an action takes place. When -에서 used in such function is replaced by -을/를 the meaning of the clause changes. While -에서 marks the place where the action was performed, -을/를 signals that the action was performed across the mentioned space from start to finish.

에서 Action 을/를 존이 여의도 공원에서 뛰었어요 John