Problem: In 1955, the Aurora Borealis, a coating applied to crystal stones to produce a "rainbow of colors" effect was introduced.

Based on the paragraph above can we conclude that "Aurora Borealis crystal make you feel dreamy."? OPTIONS:
- Yes
- It's impossible to say
- No

A: It's impossible to say


Problem: These acoustic methods are now expected to be useful for the long-range remote sensing of schools of fish as well as for distant ocean bottom characterizations.

Based on the paragraph above can we conclude that "Accoustic methods can sense gigantic craters in the sea floor."? OPTIONS:
- Yes
- It's impossible to say
- No

A: It's impossible to say


Problem: Jacques Santer succeeded Jacques Delors as president of the European Commission in 1995, the second Luxembourger to hold this high office.

Based on the paragraph above can we conclude that "Jecques Santer was a Luxembourger."? OPTIONS:
- Yes
- It's impossible to say
- No

A:
Yes