Brain is related to Human. Human is related to Peace. Peace is related to Rest. Rest is a type of Support. 
Flexibility is related to Stretch. Stretch is related to Quality. Power is a type of Quality. Power is related to Sand. 
Brain <--RelatedTo--> Human <--RelatedTo--> Peace <--RelatedTo--> Rest --IsA--> Support 
Flexibility <--RelatedTo--> Stretch <--RelatedTo--> Quality <--IsA-- Power <--RelatedTo--> Sand 