sentences:  Despite the vanishing of the Californian and Australian markets, wheat cultivation remained highly profitable.In the 1850s, with the German colonization of Valdivia, Osorno and Llanquihue and the onset of sheep farming in the Chilean territory at the Strait of Magellan, Araucanía remained the sole place for agriculture to expand.Mapuche lands around the south of the Bío-Bío River began to be bought by non-Mapuches in the late 18th century, and by 1860 land between Bío-Bío and Malleco River was mostly under control of Chileans.