Context:
Mary's Journey<br>Mary wanted to start a walking plan but did not know how to begin. She went online and researched walking for exercise. She spoke with a trainer at the YMCA who helped her write a plan. Mary started out walking one block per day, for one week. By the end of the month, she was walking four blocks.
Hypothesis: mary used a keyboard and mouse
Yes
Context:
The Croatian will face competition, especially from the American of Chinese origin, Michael Chang, second-seeded in the tournament. Organizers hope that the tournament will contribute to advancing tennis in their countries.
Hypothesis: This tournament features only 3 countries.
It's impossible to say
Context:
Venera Gimadieva (Russian: Венера Гимадиева, born 28 May 1984) is a Russian operatic soprano. She is invited to the opera houses around the world as one of the leading lyric-coloratura sopranos of her generation. Member of the Lake Baikal Foundation Community Board.
Hypothesis: All the Russian soprano are the member of the Lake Baikal Foundation Community Board.

It's impossible to say