Activity is related to Think. Brain can be used for Think. Brain is related to Shock. Shock is related to Danger. 
Mother is related to Family. Family is related to Home. Home is related to Original. 
Activity <--RelatedTo--> Think <--UsedFor-- Brain <--RelatedTo--> Shock <--RelatedTo--> Danger 
Mother <--RelatedTo--> Family <--RelatedTo--> Home <--RelatedTo--> Original 