Given a text passage, come up with an appropriate title for it. The title should accurately represent what the main focus of the passage is. The title of a passage may be present in the first few sentences of the passage and/or be referred to multiple times in the passage. The title should be 1-5 words long.

Q: Mauna Loa 's most recent eruption occurred from March 24 to April 15 , 1984 . No recent eruptions of the volcano have caused fatalities , but eruptions in 1926 and 1950 destroyed villages , and the city of Hilo is partly built on lava flows from the late 19th century . Because of the potential hazards it poses to population centers , Mauna Loa is part of the Decade Volcanoes program , which encourages studies of the world 's most dangerous volcanoes . Mauna Loa has been monitored intensively by the Hawaiian Volcano Observatory since 1912 . Observations of the atmosphere are undertaken at the Mauna Loa Observatory , and of the Sun at the Mauna Loa Solar Observatory , both located near the mountain 's summit . Hawaii Volcanoes National Park covers the summit and the southeastern flank of the volcano , and also incorporates Kīlauea , a separate volcano .

A: Mauna Loa
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Q: The Samsung Galaxy S8 , Samsung Galaxy S8+ ( shortened to S8 and S8+ , respectively ) and Samsung Galaxy S8 Active are Android smartphones produced by Samsung Electronics as part of the Samsung Galaxy S series . The S8 and S8+ were unveiled on 29 March 2017 and directly succeed the Samsung Galaxy S7 and S7 Edge , with a North American release on 21 April 2017 and international rollout throughout April and May . The S8 Active was announced on 8 August 2017 , and is exclusive to certain U.S. cellular carriers .

A: Samsung Galaxy S8
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Q: Chichen Itza ( / tʃ iː ˈtʃɛn iː ˈtsɑː / chee - CHEN eet - SAH , Spanish : Chichén Itzá ( tʃiˈtʃen iˈtsa ) , often with the emphasis reversed in English to / ˈtʃiːtʃɛn ˈiːtsə / CHEE - chen EET - sə ; from Yucatec Maya : Chi'ch'èen Ìitsha ' ( tɕhiʔtɕʼèːn ìːtshaʔ ) `` at the mouth of the well of the Itza people '' ) was a large pre-Columbian city built by the Maya people of the Terminal Classic period . The archaeological site is located in Tinúm Municipality , Yucatán State , Mexico .

A:
Chichen Itza
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