Dot is a synonym of Scatter. Sprinkle is a type of Scatter. Sprinkle is a type of Rain. Rain have Oxygen. 
Need is a type of Necessity. Necessity is related to Slope. Slope is related to Grass. Grass is related to Vegetable. 
Dot <--Synonym--> Scatter <--IsA-- Sprinkle --IsA--> Rain --HasA--> Oxygen 
Need --IsA--> Necessity <--RelatedTo--> Slope <--RelatedTo--> Grass <--RelatedTo--> Vegetable 