City is related to Community. you are likely to find Church in/at/on Community. 
Pour is a synonym of Stream. Stream is related to River. Aid is a type of River. Aid is a synonym of Cooperate. 
City <--RelatedTo--> Community <--AtLocation-- Church 
Pour <--Synonym--> Stream <--RelatedTo--> River <--IsA-- Aid <--Synonym--> Cooperate 