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.
Example: Passage: Nearing London, Oliver encounters Jack Dawkins, a pickpocket more commonly known by the nickname the "Artful Dodger", and his sidekick, a boy of a humorous nature named Charley Bates, but Oliver's innocent and trusting nature fails to see any dishonesty in their actions. The Dodger provides Oliver with a free meal and tells him of a gentleman in London who will "give him lodgings for nothing, and never ask for change". Grateful for the unexpected assistance, Oliver follows the Dodger to the "old gentleman's" residence. In this way Oliver unwittingly falls in with an infamous Jewish criminal known as Fagin, the gentleman of whom the Artful Dodger spoke. Ensnared, Oliver lives with Fagin and his gang of juvenile pickpockets in their lair at Saffron Hill for some time, unaware of their criminal occupations. He believes they make wallets and handkerchiefs.
Example solution: Who believes Fagin's gang make wallets and handkerchiefs?.
Example explanation: This question is based on the following sentence in the passage "He believes they make wallets and handkerchiefs". It evaluates the understanding that the pronoun "he" refers to name "Oliver". You can ask questions like this one about most pronouns in a paragraph.

Problem: Passage: In the years following the Ancestral Puebloan's departure from Chaco Canyon, several migrations to the region occurred. During the 15th century, Navajo people emigrated to the area from northwestern Canada, and in the 18th century Spanish explorers and settlers came from the south. The Spanish investigated parts of the San Juan Basin, but there is no record of them ever finding Chaco Canyon. When cartographer Bernardo de Miera y Pacheco drew a map in 1774 of Spanish land holdings in the region, he labeled Chaco Canyon with the word Chaca, but it is unlikely he ever visited the area. In 1823 the governor of New Mexico, José Antonio Vizcarra, discovered ancient ruins in the canyon during a military campaign against the Navajo. Vizcarra's account is the first historical record of the Chacoan great houses that were "of such antiquity that their inhabitants were not known to Europeans". In 1844, Josiah Gregg made the first published reference to Chaco Canyon in his popular book, Commerce of the Prairies.
The United States started exploring the region following the Mexican–American War of 1846–48 and the acquisition of the New Mexico Territory. During a military campaign against the Navajo in 1849, Lieutenant James Simpson of the United States Army Corps of Engineers became interested in the canyon's ruins. A group led by the governor of Jemez Pueblo, Francisco Hosta, explored the canyon; its members included Simpson and the brothers Richard and Edward Kern, who were respectively an artist and a cartographer. Simpson was impressed by Chetro Ketl's masonry, which he described as "a combination of science and art which can only be referred to a higher stage of civilization and refinement than is discoverable in the works of Mexicans or Pueblos of the present day." Simpson and company documented their findings, noting the location and style of the great houses, taking measurements, and sketching the canyon's major ruins. They described the kivas as "circular apartments sunk in the ground". Simpson briefly explored Chetro Ketl, documenting six of its round rooms and 124 rooms on the ground floor of the four-story building. He noted an especially well preserved room where "the stone walls still have their plaster upon them in a tolerable state of preservation." Vivian credits Simpson's 1850 report detailing their brief exploration of the canyon and Richard H. Kern's lithographs as the beginning of Chacoan archeology. The scientific investigation of Chaco Canyon started when Richard Wetherill began his exploration of the canyon in 1895. Wetherill was well known for his discovery of some of the largest Ancestral Puebloan dwellings in Mesa Verde, and after an invitation from amateur archeologist Sidney Palmer to survey Chaco Canyon, organized a one-month expedition to the region. He secured financial backing for a full season soon afterward, and in 1896 full-scale excavations began at Pueblo Bonito.
Solution: What is the full name of the man who organized a one-month expedition to the region of Chaco Canyon?