Headline is related to News. News is related to Line. Line is related to Slope. 
City is related to New. New is related to Spring. Spring is related to Bed. Bed is related to Mechanism. 
Headline <--RelatedTo--> News <--RelatedTo--> Line <--RelatedTo--> Slope 
City <--RelatedTo--> New <--RelatedTo--> Spring <--RelatedTo--> Bed <--RelatedTo--> Mechanism 