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They said abuse was not identified and the case dragged on for years.

As the dispute has dragged on, the critics have got louder, dubbing the girls as troublemakers rather than game-changers.

"I can't undo the past but all I can say is that I'm happy that our ordeal didn't drag on."

Piles of bin bags have grown high on some city streets, as a pay dispute between workers and the city council drags on.

Coalition negotiations in Germany, however, can drag on for months at a time.