{"1": ["margaret.carson@enron.com", "vince.kaminski@enron.com", "michael.sergeev@enron.com"], "2": ["mike.roberts@enron.com", "vince.kaminski@enron.com", "daniel.diamond@enron.com"], "3": ["jshu@ieor.berkeley.edu", "vince.kaminski@enron.com", "martin.lin@enron.com"]}