Input: Article: The semi-arid high plains in the state's northwestern corner harbor few natural forests; the region has a rolling to flat landscape with intermittent canyons and mesa ranges like the Glass Mountains. Partial plains interrupted by small, sky island mountain ranges like the Antelope Hills and the Wichita Mountains dot southwestern Oklahoma; transitional prairie and oak savannahs cover the central portion of the state. The Ozark and Ouachita Mountains rise from west to east over the state's eastern third, gradually increasing in elevation in an eastward direction.

Now answer this question: What mountains are in Oklahoma's eastern third?

Output: The Ozark and Ouachita Mountains

Input: Article: The major time divisions of classical music up to 1900 are the early music period, which includes Medieval (5001400) and Renaissance (14001600) eras, and the Common practice period, which includes the Baroque (16001750), Classical (17501830) and Romantic (18041910) eras. Since 1900, classical periods have been reckoned more by calendar century than by particular stylistic movements that have become fragmented and difficult to define. The 20th century calendar period (19012000) includes most of the early modern musical era (18901930), the entire high modern (mid 20th-century), and the first 25 years of the contemporary or postmodern musical era (1975current). The 21st century has so far been characterized by a continuation of the contemporary/postmodern musical era.

Now answer this question: How have periods been reckoned Since 1900?

Output: by calendar century

Input: Article: Catholic missionary Father A. Erdland, from the Sacred Heart Jesu Society based in Hiltrup, Germany, lived on Jaluit from around 1904 to 1914. He was very interested in the islands and conducted considerable research on the Marshallese culture and language. He published a 376-page monograph on the islands in 1914. Father H. Linckens, another missionary from the Sacred Heart of Jesu Society visited the Marshall Islands in 1904 and 1911 for several weeks. He published a small work in 1912 about the Catholic mission activities and the people of the Marshall Islands.

Now answer this question: What Catholic group was Father Erdland a part of?

Output:
the Sacred Heart Jesu Society