6941
In the past the monarch has occasionally had to make a judgement , as in the appointment of Alec Douglas-Home in 1963 when it was thought that the incumbent Prime Minister , Harold Macmillan , had become ill with terminal cancer .
 person: Alec Douglas-Home; person: Harold Macmillan
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: Alec Douglas-Home; person: Harold Macmillan