Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Historic Sanctuary of Machu Picchu' has mentioned 'Farming' in the following places:
Occurrence Sentence Text Source
Terraces used for farming at Machu Picchu
Much of the farming done at Machu Picchu was done on its hundreds of man-made terraces.
However, it has been found that the terrace farming area makes up only about 4.9xc2xa0ha (12 acres) of land, and a study of the soil around the terraces showed that what was grown there was mostly corn and potatoes, which was not enough to support the 750+ people living at Machu Picchu.
At the top of the mountain, they came across a small hut occupied by a couple of Quechua, Richard and Alvarez, who were farming some of the original Machu Picchu agricultural terraces that they had cleared four years earlier.
Following a rigorous plan the city is divided into a lower and upper part, separating the farming from residential areas, with a large square between the two.