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.
Q: Passage: The film begins with a U.S. Army commander dictating a report.  Held prisoner in the commander's office, in a fort that has been almost totally destroyed, is the Arapaho Indian war chief, Hanu.  He says very little.  Within the fort's ruins have been found a single grave and a Colt pistol once owned by a gunman Hanu describes as a "quiet, lonely man..." At this point the action of the movie commences.
A wandering gunman, Chuka, rides into an Arapaho camp. It is winter and everyone in the camp is starving, so he gives them some food. Shortly afterwards Chuka crosses paths with a stagecoach taking Mexican passengers Senora Veronica Kleitz and her niece Senorita Helena Chavez through the territory.  Chuka and Kleitz look hard at each other. Suddenly mounted Arapaho warriors, led by Hanu, surround the coach.  Everyone connected to the stagecoach expects to be killed, but Hanu recognizes Chuka and the braves simply ride on.
Chuka accompanies the coach to a nearby U.S. Army fort.  The outpost's commander, Colonel Stuart Valois, is worried the Arapahos may have ambushed his overdue patrol and refuses to allow the civilians to leave. He sends out his scout Lou Trent to reconnoiter, but the horse returns without the rider.
A:
Who does the Indian war chief recognize?