Force is related to Cause. Cause is related to Conservation. Conservation is a type of Principle. 
People can be Generous. People is related to Culture. Starter is a type of Culture. Starter is related to Spark. 
Force <--RelatedTo--> Cause <--RelatedTo--> Conservation --IsA--> Principle 
Generous <--HasProperty-- People <--RelatedTo--> Culture <--IsA-- Starter <--RelatedTo--> Spark 