Parade is related to Band. Band is related to Roll. Roll is related to Bread. Bread is related to Square. 
you are likely to find Can in/at/on Trash. Can is related to Could. Could is related to Happen. Happen is related to Place. 
Parade <--RelatedTo--> Band <--RelatedTo--> Roll <--RelatedTo--> Bread <--RelatedTo--> Square 
Trash <--AtLocation-- Can <--RelatedTo--> Could <--RelatedTo--> Happen <--RelatedTo--> Place 