Contemplate requires Observe. Track is a type of Observe. Track is related to Race. Race is related to Lost. 
Hug is related to Bear. Bare is a form of Bear. 
Contemplate --HasPrerequisite--> Observe <--IsA-- Track <--RelatedTo--> Race <--RelatedTo--> Lost 
Hug <--RelatedTo--> Bear <--FormOf-- Bare 