Science is related to Research. Volume can be used for Research. you are likely to find Volume in/at/on Library. Library is related to Rental. 
Interest is related to Saving. Saving is related to Help. Mayor can be used for Help. 
Science <--RelatedTo--> Research <--UsedFor-- Volume --AtLocation--> Library <--RelatedTo--> Rental 
Interest <--RelatedTo--> Saving <--RelatedTo--> Help <--UsedFor-- Mayor 