Definition is a type of Explanation. Definition is related to Precise. 
Note is a synonym of Use. Use is related to Blow. Blow is a different concept from High. High is related to Corn. 
Explanation <--IsA-- Definition <--RelatedTo--> Precise 
Note <--Synonym--> Use <--RelatedTo--> Blow <--DistinctFrom--> High <--RelatedTo--> Corn 