Classify is a synonym of Arrange. Line can be used for Arrange. Line can be used for Definition. 
Little is related to Note. Note is related to Key. Key is a type of List. Catalog is a type of List. 
Classify <--Synonym--> Arrange <--UsedFor-- Line --UsedFor--> Definition 
Little <--RelatedTo--> Note <--RelatedTo--> Key --IsA--> List <--IsA-- Catalog 