836
From there , through Nyssa ( Sarah Sutton ) , the Master orchestrates the series of events that leads to the Doctor 's regeneration into his fifth incarnation ( Peter Davison ) .
 person: Nyssa; person: Sarah Sutton; person: Peter Davison
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Nyssa; person: Sarah Sutton; person: Peter Davison