What is the fine-grained topic of the following text: Curtis Johnson, pastor of Valley Brook Outreach Baptist Church, who delivered the keynote address at the City of Greer’s 16th annual Dr. Martin Luther King Celebration Luncheon Monday afternoon at Greer City Hall. Only return the topic.
Curtis Johnson's keynote address at the City of Greer’s 16th annual Dr. Martin Luther King Celebration Luncheon