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With François Debret 's reconstructive works , carried out after an 1837 lightning strike , proving inadequate , in February 1846 the authorities decided to " temporarily " dismantle the north tower to avoid a catastrophic collapse , with the stones stored for later reconstruction .
 person: François Debret
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 person: François Debret