Bulk is a synonym of Volume. you are likely to find Volume in/at/on Library. Library is related to Center. 
Motion is related to Twist. Twist is related to Move. Streak is a type of Move. 
Bulk <--Synonym--> Volume --AtLocation--> Library <--RelatedTo--> Center 
Motion <--RelatedTo--> Twist <--RelatedTo--> Move <--IsA-- Streak 