Thus,he says,it is not possible to ascertain who is responsible for the shelling or to make a definitive casualty count.

VOA: standard.2009.05.11

The definitive history of the Cold War's end clearly has yet to be written.

VOA: standard.2009.11.03

Brennan - who is leading a White House investigation into the incident told ABC's This Week there were bits and pieces of information about the suspect, but no definitive evidence.

VOA: standard.2010.01.03

So we've strong plans in place, but we're continuing to work on them with the pinnacle of our work, getting the right vaccine in place to be able to give definitive protection to people,".

VOA: standard.2009.07.31

She urged the Tehran government to give a definitive answer to an offer by major powers to further process Iranian enriched uranium outside that country to resupply a Tehran reactor, running low on fuel, that produces isotopes for medical purposes.

VOA: standard.2009.11.09