Construction is a type of Thinking. Thinking can cause/lead to Progress. March is a type of Progress. 
Sun is related to Hat. Hat is a type of Function. Function is related to Touch. Toe is a type of Touch. 
Construction --IsA--> Thinking --Causes--> Progress <--IsA-- March 
Sun <--RelatedTo--> Hat --IsA--> Function <--RelatedTo--> Touch <--IsA-- Toe 