Broad is related to Describe. Describe is related to Illustrate. 
Servant is related to Boss. Boss is a type of Human. Human is related to Civilization. Islam is a type of Civilization. 
Broad <--RelatedTo--> Describe <--RelatedTo--> Illustrate 
Servant <--RelatedTo--> Boss --IsA--> Human <--RelatedTo--> Civilization <--IsA-- Islam 