Gleam, glitter, glow,

They're moving very slow,

Sometimes on a smooth surface,

Often searching they\'re way down,

Between hunderds of obstacles,

They can be seen in every town,

Always moving and searching their way,

Again and again, everyday,

They merge and seperate with their species all the time,

And they can also be found, in this little rhyme.

Two ducks before a duck, two ducks behind a duck, and a duck in de middle.

How many ducks are there?

Susan is in the final of a match at the olympic games. At the moment she reaches the finish, all the other contestants are behind her back. She did not play unfair and did also not use doping, but she does not get the gold medal? Why is that?