Rest is related to Eating. Eating is related to Tablespoon. Tablespoon is related to Small. Small is related to Portion. 
Speak is the opposite of Hear. Hear is a different concept from Look. 
Rest <--RelatedTo--> Eating <--RelatedTo--> Tablespoon <--RelatedTo--> Small <--RelatedTo--> Portion 
Speak <--Antonym--> Hear <--DistinctFrom--> Look 