Given the sentence "A red-uniformed hockey player is attempting to control the puck while two white-suited hockey players try to disrupt him." is it true that "Three canadians are playing hockey in uniforms."?
Think hard. Detailed solution:
it is not possible to tell
A red-uniformed hockey player is attempting to control the puck while two white-suited hockey players try to disrupt him doesn't mean that they were Canadians.

.

Thus, the answer is it is not possible to tell