user: Give me a bulleted list of Aaron Fenster's accomplishments.

assistant: - Medical physicist at the University of Western Ontario Robarts Research Institute.
- Fellow of the Institute of Electrical and Electronics Engineers (IEEE).
- Fellow of the Canadian Academy of Health Sciences. 
- Co-program director of the Ontario Institute for Cancer Research Imaging Program. 
- Completed a Ph.D. from the University of Toronto.

user: Which is a species of fish? Sardine or Sardinia

assistant: Sardine

user: Which country is the best at hockey?

assistant: Canada is widely considered to be the strongest country in ice hockey. The National Hockey League (NHL) is the highest level of competition in the world. About half of NHL players are Canadian.