21.   It is widely believed that planets such as Earth exist around other stars, but there has been no solid proof.

22.   The United States and South Korea suspect North Korea is building an underground facility for nuclear weapons development, but admit they have no solid proof.

23.   He said such identification was not decisive and police were trying to get more solid proof.

24.   It also noted the solid proof of summary executions of Moslem men by the Bosnian Serb army and paramilitary forces.

25.   But sources close to the prosecution said the evidence was only circumstantial and solid proof was lacking.

26.   Defence lawyers will argue the evidence against the two men is only circumstantial with no solid proof.

27.   They said police lacked solid proof against Netanyahu and would need to question him again in order to make charges stick -- something the state prosecutor ruled out.

28.   Sudanese officials deny any involvement in the assassination bid, but Ethiopian officials said last week they had obtained solid proof linking Khartoum to the attack.

29.   Sudanese officials deny any involvement, but Ethiopian officials said last week they had obtained solid proof linking Khartoum to the attack.