Bow is a type of Play. Person wants (to) Play. Person wants (to) Mail. Mail is a type of Collection. 
Detail is a type of Assign. Detail is related to Age. Age is related to Growing. 
Bow --IsA--> Play <--Desires-- Person --Desires--> Mail --IsA--> Collection 
Assign <--IsA-- Detail <--RelatedTo--> Age <--RelatedTo--> Growing 