Motivate is a synonym of Encourage. Encourage is a synonym of Comfort. 
Oven is related to Device. Device is related to Motor. Motor is related to Belt. Belt is related to Waist. 
Motivate <--Synonym--> Encourage <--Synonym--> Comfort 
Oven <--RelatedTo--> Device <--RelatedTo--> Motor <--RelatedTo--> Belt <--RelatedTo--> Waist 