Problem: Context: The new study refutes earlier findings by researchers at the University of California, Los Angeles, who concluded that the odds of getting head and neck cancers rose in tandem with the frequency and duration of marijuana use.
The latest findings contradict a California study that implicated regular pot smoking as having markedly higher risks for head and neck cancers.
A: yes

Problem: Context: The organizing committee said 65 countries have entered the Lillehammer Olympic Games, matching the number of nations at the 1992 Winter Games in Albertville, France.
65 countries take part in the Lillehammer Olympic Games.
A: yes

Problem: Context: The participation of women in parliament in Mauritius is expected to increase as more female candidates have contested Monday's election.
Women are poorly represented in parliament.
A: no

Problem: Context: Chinese Premier, Zhu Rongji, and German Chancellor, Gerhard Schroeder, opened the world's first commercial magnetic levitation (maglev) train yesterday, with both sides having much to gain from its success.
Both Mr. Schroeder and Mr. Zhu have much to gain if maglev succeeds.
A:
yes