Hard is related to Stone. Stone is a synonym of Pit. Pit is related to Actor. 
Candidate is related to Office. Office is a synonym of Function. Function is related to Flash. Flash is related to Super. 
Hard <--RelatedTo--> Stone <--Synonym--> Pit <--RelatedTo--> Actor 
Candidate <--RelatedTo--> Office <--Synonym--> Function <--RelatedTo--> Flash <--RelatedTo--> Super 