Arrangement is related to Bed. Bed is related to Post. Post is related to British. British is related to Minister. 
Require is a synonym of Command. Command is a type of Demand. Demand is related to Threat. 
Arrangement <--RelatedTo--> Bed <--RelatedTo--> Post <--RelatedTo--> British <--RelatedTo--> Minister 
Require <--Synonym--> Command --IsA--> Demand <--RelatedTo--> Threat 