Measurement is related to Week. Week is part of Year. 
Hide is related to Animal. Animal is related to Bacteria. you are likely to find Bacteria in/at/on Lake. Lake is related to Pool. 
Measurement <--RelatedTo--> Week --PartOf--> Year 
Hide <--RelatedTo--> Animal <--RelatedTo--> Bacteria --AtLocation--> Lake <--RelatedTo--> Pool 