{'BU Academy', 'Nobles'}
Cycle detected: {'Valley Regional', 'BB&N', 'Hopkins', 'NMH', 'Newton Country Day', "Miss Porter's", 'Groton', 'Cambridge RLS', 'Lyme/Old Lyme', 'Choate', 'Winsor', "St. Mary's-Lynn", 'Brewster Academy', 'Middlesex', "St. Mark's", 'Greenwich Academy', 'Taft', 'Canterbury', 'Lincoln', 'Frederick Gunn', 'Middletown', 'Brooks', 'St. Mary Academy-Bay View'}
{'Berkshire Academy'}
{'Pomfret'}
{'Marianapolis Prep'}
{'Derryfield'}
{'Dexter-Southfield', 'Berwick'}
{'Greenwich Country Day', 'Suffield', 'Worcester Academy', 'Pingree'}