Water is a type of Nutrient. you are likely to find Water in/at/on Garden. 
Dip is related to Vegetable. Vegetable is related to Tree. Tree is related to Growing. Growing is related to Soil. 
Nutrient <--IsA-- Water --AtLocation--> Garden 
Dip <--RelatedTo--> Vegetable <--RelatedTo--> Tree <--RelatedTo--> Growing <--RelatedTo--> Soil 