5436
But the Doctor reveals Davros ' scheme has also revitalised the decomposing Daleks left to rot in Skaro 's sewers , causing them to revolt and destroy the city .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities:  
Answer:
 None