Input:

How to use physical therapy to relieve back pain<br>Choose a physical therapist who specializes in back pain treatment. Make an appointment with your doctor to get a prescription for physical therapy. Ask the doctor to recommend a handful of physical therapists who have extensive experience treating cervical, thoracic or lumbar spinal pain.

Sentence: Physical therapy is the best remedy for back aches.

Output: It's impossible to say

Input:

The World Bank I think is generally doing a better job, but I think one of the big issues here that doesn't get nearly enough attention is the issue of corruption. The governor mentioned it earlier. I've worked on this issue. It's an enormous problem and corruption in official agencies, like militaries and police departments around the world, customs officials, that's one of the worst forms of it.

Sentence: The World Bank is a military complex.

Output: No

Input:

When the Berlin Wall fell in early November, 1989 Berlin's east and west sections were rejoined to create the third-largest city in Europe , with a population of about 3 million.

Sentence: East Berlin did not exist after the wall fell

Output: Yes

Input:

Cup<br>She wasn't very hungry at lunch time. She went out to pick up burgers. She ordered herself a kids meal. The toy was a plastic cup. She thought it was rather boring.

Sentence: She went out to pick up burgers from a burger joint.

Output:
It's impossible to say