{'Belmont Hill', 'Berwick'}
{'Nobles', 'Medford'}
{'Bancroft'}
{"St. Mary's-Lynn"}
Cycle detected: {'Hopkins', 'Berkshire Academy', 'Brewster Academy', 'Frederick Gunn', 'Brooks', 'Groton', 'Pomfret', 'BB&N', 'Cambridge RLS', "St. Mark's", 'Lyme/Old Lyme', 'Taft', 'NMH'}
{'Middletown', 'Canterbury', 'Choate', 'Middlesex'}