Flesh is related to Fruit. Fruit is related to Peel. Peel is related to Waste. 
Spine is related to Book. you are likely to find Book in/at/on Purse. 
Flesh <--RelatedTo--> Fruit <--RelatedTo--> Peel <--RelatedTo--> Waste 
Spine <--RelatedTo--> Book --AtLocation--> Purse 