Mom is related to Baby. Baby is related to Seed. 
Frontier is related to Space. Space is related to Open. Open is a synonym of Unfold. Butterfly is a type of Unfold. 
Mom <--RelatedTo--> Baby <--RelatedTo--> Seed 
Frontier <--RelatedTo--> Space <--RelatedTo--> Open <--Synonym--> Unfold <--IsA-- Butterfly 