Innocent is a synonym of Simple. Simple is related to Ordinary. Ordinary is the opposite of Unique. People can be Unique. 
Grow is related to Natural. Natural is related to Herb. Tobacco is a type of Herb. 
Innocent <--Synonym--> Simple <--RelatedTo--> Ordinary <--Antonym--> Unique <--HasProperty-- People 
Grow <--RelatedTo--> Natural <--RelatedTo--> Herb <--IsA-- Tobacco 