Sentence:  They have been here, the bora rings, for over twenty thousand years, it is believed; it is only in the past hundred, a hiccup in time, that indifferent <WSD>graziers</WSD> and the treads of their four-wheel drives have scattered the stones and have imprinted zippered cars across their sacred clay skin. 
Meaning of the word marked with <WSD> tags:  The owner of a large property on which sheep or cattle graze.