Assertion: volcano's caldera | /r/HasProperty | several overlapping
Facets:
Source sentences:
text: Border with Argentina Maule 2010, 1998, 1991, 1967, 1962, 1960, 1959, 1938, 1937, 1889-94?, 1878, 1872?, 1869?, 1860, 1842?, 1837, 1835, 1762, 1660 The volcano contains several overlapping calderas.