Sequence is related to Count. Count is a type of Investigation. 
you are likely to find Garage in/at/on Downtown. you are likely to find Bicycle in/at/on Garage. Bicycle have Chain. you are likely to find Chain in/at/on Shed. 
Sequence <--RelatedTo--> Count --IsA--> Investigation 
Downtown <--AtLocation-- Garage <--AtLocation-- Bicycle --HasA--> Chain --AtLocation--> Shed 