To apply further analysis to documents and files matching the keywords and find the hidden truth is knowledge.

Wind energy has been used to some extent in many countries.

Dr. Kimura gave me your name as the leading scholar in this field.

After her sickness, she's only a shadow of her former self.

Perception is based, to a very large extent, on conceptual models - which are always inadequate, often incomplete and sometimes profoundly wrong.

Also many incidents of robbery by threats and violence are occurring.

Once you get the hang of it, spreadsheet software is really useful.

However, the die had already been cast.

The life of the patient hangs in the balance.

My father says he failed in the entrance examination twice.