84248
One of the first to use the phrase was Nova Scotia Progressive Conservative premier John Buchanan , who would stand at the end of a long line of party signs and wave to morning traffic .
 Nova Scotia, Progressive Conservative, John Buchanan
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Nova Scotia, Progressive Conservative, John Buchanan