Thanksgiving is related to Corn. Corn is related to Fruit. Fruit have Sugar. 
Nature is related to Outdoor. Outdoor is related to Play. Play is a type of Sound. Drum is a type of Sound. 
Thanksgiving <--RelatedTo--> Corn <--RelatedTo--> Fruit --HasA--> Sugar 
Nature <--RelatedTo--> Outdoor <--RelatedTo--> Play --IsA--> Sound <--IsA-- Drum 