Drop is related to Measure. Measure is related to Count. Count is related to Series. Monthly is a type of Series. 
Person wants (to) Software. Framework is a type of Software. Rack is a type of Framework. Rack is a type of Try. 
Drop <--RelatedTo--> Measure <--RelatedTo--> Count <--RelatedTo--> Series <--IsA-- Monthly 
Person --Desires--> Software <--IsA-- Framework <--IsA-- Rack --IsA--> Try 