This is a quote from the book "Animal Farm" by George Orwell
...pieces below. Transporting the stone when it was once broken was comparatively simple. The horses carried it off in cart-loads, the sheep dragged single blocks, even Muriel and Benjamin yoked themselv es into an old governess-cart and did their share. By late summer a sufficient store of stone had accumulated, and then the building began, under the superintendence of the pigs.

But it was a slow, laborious process. Frequently it took a whole day of exhausting effort to drag a single boulder to the top of the quarry, and sometimes when it was pushed over the edge it failed...

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