Three police officers have been killed by a gunman in Pittsburgh - the second mass shooting in the US in 24 hours. The officers were responding to an emergency call from the house of the gunman, named as Richard Poplawski, 23. Police said he was waiting, armed with rifles and a bulletproof vest. He shot two officers as they entered the house, and a third who tried to help them. He then traded gunfire with police for four hours before being injured and giving himself up. His friends said he had recently lost his job, and was worried that US President Barack Obama was about to ban guns.
Can we say the following?
In Pittsburgh the police killed a gunman.
OPTIONS:
- yes
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no


Scientists had observed that mice with a defective Klotho gene aged prematurely and wondered if an enhanced gene would have an opposite effect.
Can we say the following?
Scientists have discovered a gene that produces a hormone that raises the life expectancy in mice by 30 percent.
OPTIONS:
- yes
- no

no


The Rock and Roll Hall Of Fame and Museum opened the nation's first major John Lennon retrospective Thursday (October 19) with a gala party attended by his widow, Yoko Ono.
Can we say the following?
Yoko Ono is John Lennon's widow.
OPTIONS:
- yes
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yes


Sida does not take any new decisions on support to projects in the Baltic states.
Can we say the following?
Baltic Countries join the EU.
OPTIONS:
- yes
- no


no