Read the following premise and answer if the hypothesis is true.
Zina Lynna Garrison (born November 16, 1963) is a former professional tennis player from the United States. During her career, she was a women's singles runner-up at Wimbledon in 1990, a three-time Grand Slam mixed doubles champion, and a women's doubles gold medalist and singles bronze medalist at the 1988 Olympic Games. She is currently coaching Taylor Townsend.
Hypothesis: Taylor Townsend has not had an improvement in her game since Garrison started working with her.. Is the answer "Yes", "No", or "It's impossible to say"? Respond with only the answer and no additional text.
It's impossible to say
It's impossible to say. The hypothesis does not provide enough information to make a definitive determination. Townsend's performance before and after G