Stair is related to Climb. you would Climb because Exercise. Exercise is related to Movement. 
Session is related to Term. Term is related to Health. Health is related to Nurse. 
Stair <--RelatedTo--> Climb --MotivatedByGoal--> Exercise <--RelatedTo--> Movement 
Session <--RelatedTo--> Term <--RelatedTo--> Health <--RelatedTo--> Nurse 