Exclude is a type of Prevent. Prevent is related to Starting. Starting is a type of Event. Event is related to Memory. 
Tight is related to Crowd. Crowd is related to Street. you are likely to find Bus in/at/on Street. 
Exclude --IsA--> Prevent <--RelatedTo--> Starting --IsA--> Event <--RelatedTo--> Memory 
Tight <--RelatedTo--> Crowd <--RelatedTo--> Street <--AtLocation-- Bus 