Statute is a synonym of Act. Act is a type of Serve. Let is a type of Serve. 
Collection is related to Forest. Forest is related to Nature. Nature is related to Animal. Animal is related to Leather. 
Statute <--Synonym--> Act --IsA--> Serve <--IsA-- Let 
Collection <--RelatedTo--> Forest <--RelatedTo--> Nature <--RelatedTo--> Animal <--RelatedTo--> Leather 