1.   The question of who planted the bomb remains a matter of guesswork.

2.   Just why remains a matter of bitter controversy here.

3.   Even if Samaranch comes out stronger and the crisis dies down, his future remains a matter of conjecture.

4.   Health of the athletes has always been and remains a matter of prime importance to the CGF and the Malaysia government, the statement said.

5.   Whether he is the greatest of all-time remains a matter of debate.