you are likely to find Paper in/at/on Notebook. you are likely to find Notebook in/at/on Desk. you are likely to find Assignment in/at/on Desk. 
Expand is the opposite of Reduce. Reduce is related to Little. 
Paper --AtLocation--> Notebook --AtLocation--> Desk <--AtLocation-- Assignment 
Expand <--Antonym--> Reduce <--RelatedTo--> Little 