Nation is related to Context. Context is a synonym of Setting. Setting is a synonym of Mount. 
Library is related to Due. Due is related to Cue. Prompt is a type of Cue. 
Nation <--RelatedTo--> Context <--Synonym--> Setting <--Synonym--> Mount 
Library <--RelatedTo--> Due <--RelatedTo--> Cue <--IsA-- Prompt 