She is a doctor. She isn't a nurse, She is a nurse. She isn't a teacher, She is a teacher. She isn't a student, He is a student. He isn't a pilot, He is a pilot. He isn't a cook, He is a cook. He isn't a doctor, They are police officers. They aren't firefighters, They are firefighters. They aren't bus drivers, They are bus drivers. They aren't soccer players, They are soccer players. They aren't police officer

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