Sandwich is a type of Organize. Organize is related to Put. Put is related to Company. 
Nation is related to Unity. Unity is a synonym of One. One is related to Simple. Simple is a synonym of Plain. 
Sandwich --IsA--> Organize <--RelatedTo--> Put <--RelatedTo--> Company 
Nation <--RelatedTo--> Unity <--Synonym--> One <--RelatedTo--> Simple <--Synonym--> Plain 