Grow is related to Small. Small is related to Owner. 
Charge is related to Cell. Cell is related to Part. Part is related to Whole. Whole is related to Grain. 
Grow <--RelatedTo--> Small <--RelatedTo--> Owner 
Charge <--RelatedTo--> Cell <--RelatedTo--> Part <--RelatedTo--> Whole <--RelatedTo--> Grain 