21.   But Riaz Muhammad Khan, the spokesman for the Pakistan Foreign Ministry, said the U.S. envoy had not provided conclusive proof.

22.   Conclusive proof that work benefits health is very hard to find, because it is mostly people who are already in good health who choose to keep on working.

23.   Conclusive proof came from Charlene Rinehart of Fayetteville, who passed along a Des Moines Register clipping she brought home from Iowa last summer.

24.   Despite the lack of conclusive proof, numerous studies suggest benefits from anti-oxidants without hint of harm.

25.   Federal officials reiterated their contention Friday that the discovery of traces of explosive material was not conclusive proof that the crash resulted from a criminal act.

26.   For many Israelis, the weapons came as conclusive proof that Arafat was girding for war as he talked of lasting peace.

27.   I have conclusive proof that everything any child ever believed about the legend of Mr. Claus is true.

28.   Indeed, the possibility of an accident has never been seriously examined, even though there is no conclusive proof that Levi killed himself.

29.   None of this adds up to conclusive proof of a national pattern.

30.   Russian officials said then that the rebels were to blame, but there is no conclusive proof of their role.