Equation is a synonym of Equality. Equality is a type of Status. Standing is a type of Status. 
you are likely to find Kid in/at/on Park. Park is related to Country. Country is related to Nature. 
Equation <--Synonym--> Equality --IsA--> Status <--IsA-- Standing 
Kid --AtLocation--> Park <--RelatedTo--> Country <--RelatedTo--> Nature 