Bolt is related to Shape. Shape is related to Plate. 
Movement is related to Passage. Passage is related to Way. Way is related to Route. Ladder is a type of Route. 
Bolt <--RelatedTo--> Shape <--RelatedTo--> Plate 
Movement <--RelatedTo--> Passage <--RelatedTo--> Way <--RelatedTo--> Route <--IsA-- Ladder 