Police is related to Reward. Reward is related to Thank. 
Consideration is a synonym of Circumstance. Circumstance is a type of Information. Information is related to Answer. Answer is related to Difference. 
Police <--RelatedTo--> Reward <--RelatedTo--> Thank 
Consideration <--Synonym--> Circumstance --IsA--> Information <--RelatedTo--> Answer <--RelatedTo--> Difference 