Conversation is related to Say. Say is related to Protest. Protest is related to Walk. Walk is related to Body. 
Force is a synonym of Personnel. Personnel is derived from Person. Person is related to Cell. Cell is a synonym of Cabin. 
Conversation <--RelatedTo--> Say <--RelatedTo--> Protest <--RelatedTo--> Walk <--RelatedTo--> Body 
Force <--Synonym--> Personnel --DerivedFrom--> Person <--RelatedTo--> Cell <--Synonym--> Cabin 