Lexical Web

Does it work?

"Yes"

... human information needs are being met .... Marshall 2003

Evidence?

Some positive

How would pricing automobile insurance by distance affect traffic volume?

An answer is found in the first hit from NSIR.

Some negative

Which sister-city relationships between Europe and Asia are based on music?

No answer is found in the first hit from NSIR, even though an answering page exists.