Training is a type of Activity. Training is related to Stretch. 
you are likely to find Knowledge in/at/on Library. Study can cause/lead to Knowledge. Study is a synonym of Cabinet. you are likely to find Thread in/at/on Cabinet. 
Activity <--IsA-- Training <--RelatedTo--> Stretch 
Library <--AtLocation-- Knowledge <--Causes-- Study <--Synonym--> Cabinet <--AtLocation-- Thread 