Rest is related to Like. Like is related to Toy. Toy is related to Present. Present is similar to Immediate. 
Lock is related to Combination. Combination is a type of Unit. Chain is a type of Unit. Link is part of Chain. 
Rest <--RelatedTo--> Like <--RelatedTo--> Toy <--RelatedTo--> Present <--SimilarTo--> Immediate 
Lock <--RelatedTo--> Combination --IsA--> Unit <--IsA-- Chain <--PartOf-- Link 