Adolescent is related to Child. Child is related to Infant. 
Nurse is related to Profession. Education is a type of Profession. Education is a synonym of Training. Training is related to Doctor. 
Adolescent <--RelatedTo--> Child <--RelatedTo--> Infant 
Nurse <--RelatedTo--> Profession <--IsA-- Education <--Synonym--> Training <--RelatedTo--> Doctor 