Infant is related to Child. you are likely to find Child in/at/on Pen. Pen is related to Independence. 
Spy is related to Mystery. Death is a type of Mystery. Death is the opposite of Born. Born is a different concept from Adopt. 
Infant <--RelatedTo--> Child --AtLocation--> Pen <--RelatedTo--> Independence 
Spy <--RelatedTo--> Mystery <--IsA-- Death <--Antonym--> Born <--DistinctFrom--> Adopt 