In this task, you're given passages that contain mentions of names of people, places, or things. Some of these mentions refer to the same person, place, or thing. Your job is to write questions that evaluate one's understanding of such references. Good questions are expected to link pronouns (she, her, him, his, their, etc.) or other mentions to people, places, or things to which they may refer. Do not ask questions that can be answered correctly without understanding the paragraph or having multiple answers. Avoid questions that do not link phrases referring to the same entity. For each of your questions, the answer should be one or more phrases in the paragraph, and it should be unambiguous.

Passage: The first eruptions of Nevado del Ruiz occurred about 1.8 million years ago at the beginning of the Pleistocene epoch. Three primary eruption periods in the history of the massif have been identified: ancestral, older and present. During the ancestral period between one million to two million years ago, a complex of large stratovolcanoes was created. Between 1.0 million and 0.8 million years ago, they partially collapsed, forming large (510 km wide) calderas. During the older period, which lasted from 0.8 million to 0.2 million years ago, a new complex of large stratovolcanoes developed (including Older Ruiz, Tolima, Quindio, and Santa Isabel). Once again explosive summit calderas formed from 0.2 million to 0.15 million years ago.The present period began about 150,000 years ago and involved the development of the present volcanic edifice through the emplacement of lava domes made of andesite and dacite (igneous rocks) inside older calderas. During the past 11,000 years, Nevado del Ruiz passed through at least 12 eruption stages, which included multiple slope failures (rock avalanches), pyroclastic flows and lahars leading to partial destruction of the summit domes. During the past several thousand years, eruptions of the volcanoes in the RuizTolima massif have mostly been small, and the pyroclastic flow deposits have been much less voluminous than during the Pleistocene. Since the volcano's earlier eruptions are not recorded, volcanologists have used tephrochronology to date them.During recorded history, eruptions have consisted primarily of a central vent eruption (in the caldera) followed by an explosive eruption, then lahars. Ruiz's earliest identified Holocene eruption was about 6660 BC, and further eruptions occurred in 1245 BC 150 years (dated through radiocarbon dating), about 850 BC, 200 BC 100 years, 350 AD 300 years, 675 AD 50 years, in 1350, 1541 (perhaps), 1570, 1595, 1623, 1805, 1826, 1828 (perhaps),[b] 1829, 1831, 1833 (perhaps),[b] 1845, 1916, December 1984 March 1985, September 1985 July 1991, and possibly in April 1994.[b] Many of these eruptions involved a central vent eruption, a flank vent eruption, and a phreatic (steam) explosion. Ruiz is the second-most active volcano in Colombia after Galeras.
What partially collapsed, forming large (510 km wide) calderas?

Passage: The village government is led by a mayor and four trustees, all unpaid officials elected at-large for two-year terms. The current mayor is Steven A. Vescio, elected in 2019. A full-time, appointed village manager handles day-to-day community affairs; the first was Max Vogel in 1967. Briarcliff Manor's government operates from the village hall, which houses the Justice Court and offices of the mayor and village manager. As of February 2014, there are 5,531 registered voters in Briarcliff Manor. As of 2017 the village's government employed 69 people full-time, including their building department, planning board, department of public works, the recreation department, the police department, the architectural review advisory committee, and the conservation advisory council. The village government administered a 201718 operating budget of approximately $28 million which predominantly went towards public works, police protection, debt service, and recreational facilities and services.Briarcliff Manor maintains a voting custom that dates to at least around 1905. In addition to its customary general election, held at the same day in every municipality in New York, the village has a nonpartisan caucus, a town meeting-style forum to determine officeholders. The system of the People's Caucus is largely unique to the village, and has been described as an extension of the New England town hall concept. The People's Caucus, officially formed in 1946, chooses candidates by majority vote two months before the village election, where the candidates usually run unopposed, turning the election into a formality. The caucus is open to citizens of 18 years or over who have lived in the village for at least a month; voter registration is not required. Voters and candidates do not declare party affiliations, instead candidates present their platforms in early January of each year, and weeks later the caucus meets again to vote.In the Westchester County Board of Legislators, the western portion of Briarcliff Manor (in Ossining) is represented by Democrat and Majority Leader Catherine Borgia in District 9, while the eastern part (in Mount Pleasant) is represented by Conservative Margaret A. Cunzio in District 3. In the New York State Legislature, the western portion of the village is represented by Democrat Sandy Galef for the New York State Assembly's 95th District, while the eastern portion is represented by Democrat Thomas Abinanti for the Assembly's 92nd District. Democrat David Carlucci represents the Ossining portion of the village for the New York Senate's 38th District, and Republican Terrence Murphy represents the Mount Pleasant end of the village in the Senate's 40th District. In Congress, the village is represented by Democrat Nita Lowey in the House of Representatives from New York's 17th District and Democrats Kirsten Gillibrand and Chuck Schumer in the Senate.
Of what town is Steven A. Vescio the mayor?

Passage: In 1861, Rossier was in Siam, where he assisted the French zoologist Firmin Bocourt by taking ethnographic portraits for the latter's scientific expedition of 18611862, and in 1863, Negretti and Zambra issued a series of 30 stereographic portraits and landscapes taken in Siam that are almost certainly the work of Rossier. In February 1862, Rossier was again in Shanghai, where he sold his cameras and other photographic equipment before embarking for Europe. During his time in Asia it is possible that Rossier photographed in India; Negretti and Zambra issued a series of views of India at about the same time as Rossier's China views.Rossier returned to Switzerland in early 1862 and, in October 1865, married Catharine Barbe Kaelin (18431867). The couple had a son, Christophe Marie Pierre Joseph, who was born on 30 July 1866. Catharine died on 4 April 1867.
Rossier maintained a photographic studio in Fribourg until at least 1876 and he also had a studio in Einsiedeln. During the 1860s and 1870s, he produced a number of stereographs and cartes-de-visite comprising portraits and views of Fribourg, Einsiedeln and other places in Switzerland. An 1871 advertisement in the French-language Fribourg newspaper La Liberte offered photographs by Rossier of religious paintings by the artist Melchior Paul von Deschwanden. In 1872, Rossier applied for a passport to travel to France where he may have produced photographs. At some point between 1871 and 1884, he married again. His second wife, Marie Virginie Overney, was employed as a household servant by the landlords of his studio. They had a son, Joseph Louis, who was born in Paris on 16 March 1884, and who went on to own a cafe in Vevey, Switzerland. He died in 1927.
Pierre Rossier died in Paris some time between 1883 and 1898.Examples of Rossier's views of Switzerland are held in several institutions and private collections in that country. Rossier took the first commercial photographs of China and Japan, and they are now quite rare. He complained at times of the adverse effects of the climate on his photographic chemicals and some of his negatives may have been damaged en route to London from Asia. Though his surviving images are scarce, his importance to the early history of photography in Asia is great. Before his arrival in Japan in 1859, Japanese students of photography had struggled to produce satisfactory images, but Rossier's experience, instruction, and contacts with suppliers of photographic materials were extremely helpful in the development of an autonomous photographic tradition in Japan.
What was the full name of the person who died on 4 April 1867?