Monthly is a type of Series. Monthly is related to Wage. Wage is a synonym of Salary. Salary is related to Increase. 
Field is related to Gate. Gate is a type of Restrict. Classify is a type of Restrict. Identify entails/necessarily involves Classify. 
Series <--IsA-- Monthly <--RelatedTo--> Wage <--Synonym--> Salary <--RelatedTo--> Increase 
Field <--RelatedTo--> Gate --IsA--> Restrict <--IsA-- Classify <--Entails-- Identify 