48599
Dr. Stefan T. Buczacki is a British horticulturist and botanist , broadcaster , author , lecturer and expert witness .
 Stefan, Buczacki, British
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Stefan, Buczacki, British