Given the task definition, example input & output, solve the new input case.
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.
Output: Who believes Fagin's gang make wallets and handkerchiefs?.
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.

New input case for you: Passage: Neill was promoted to lieutenant colonel during his participation in the Siege of Béxar, and 10 days later Houston placed him in charge of the Texian garrison in the city. In January residents had begun evacuating ahead of Santa Anna's approaching forces. Neill pleaded with Houston for replenishment of troops, supplies and weaponry. The departure of Texians who joined the Matamoros Expedition had left Neill with only about 100 men. At that point Houston viewed Béxar as a military liability and did not want Santa Anna's advancing army gaining control of any remaining soldiers or artillery. He dispatched Bowie with instructions to remove the artillery, have the defenders abandon the Alamo mission and destroy it. Upon his January 19 arrival and subsequent discussions with Neill, Bowie decided the mission was the right place to stop the Mexican army in its tracks.  He stayed and began to help Neill prepare for the coming attack.  Lieutenant Colonel William B. Travis arrived with reinforcements on February 3. When Neill was given leave to attend to family matters on February 11, Travis assumed command of the mission, and three days later he and Bowie agreed to a joint command. Santa Anna crossed the Rio Grande on February 16, and the Mexican army's assault on the Alamo began February 23. Captain Juan Seguín left the mission on February 25, carrying a letter from Travis to Fannin at Goliad requesting more reinforcements. Santa Anna extended an offer of amnesty to Tejanos inside the fortress; a non-combatant survivor, Enrique Esparza, said that most Tejanos left when Bowie advised them to take the offer. In response to Travis' February 24 letter To the People of Texas, 32 militia volunteers formed the Gonzales Ranging Company of Mounted Volunteers and arrived at the Alamo on February 29.
If you execute your enemies, it saves you the trouble of having to forgive them.
Output:
What is the name of the city Neill was placed in charge of the garrison?