Body is a type of Message. Body is related to Water. Climb requires Water. Climb is a type of Rise. 
Taste is related to Rice. Rice is related to Toss. 
Message <--IsA-- Body <--RelatedTo--> Water <--HasPrerequisite-- Climb --IsA--> Rise 
Taste <--RelatedTo--> Rice <--RelatedTo--> Toss 