In this task, you're expected to write answers to questions involving multiple references to the same entity. The answer to the question should be unambiguous and a phrase in the paragraph. Most questions can have only one correct answer.

Q: Passage: Writing after the fall of Nojpeten, friar Cano described the ultimate fate of Diaz de Velasco and his companions; he claimed to have received the information from interviews with the soldiers from Yucatan who had stormed the Itza capital and from Ch'ol witnesses, although there were no Ch'ol at Nojpeten. Diaz's party arrived at the lakeshore and were told by local Itza that Franciscan friars were at Nojpeten. They were wary at first and asked for proof, upon which an Itza messenger brought them a rosary as a token. Looking across the lake they saw men dressed as friars calling to them to come across, these were Itza dressed in the habits of the two Franciscans who had recently been killed at the island. Diaz and his companions then boarded the Itza canoes, leaving thirty Maya porters with their mules and supplies.Once on the lake the Itza overturned some of the canoes and killed some of Diaz's men; others were wounded and dragged ashore to be killed. Diaz, the Dominicans and two other men were in a large canoe that was not overturned and were taken to Nojpeten where a fierce struggle ensued as Diaz attempted to defend himself with his sword, killing several Itzas. The two other men were immediately killed while the friars were beaten and tied to X-shaped crosses before having their hearts cut out. Across the lake, the Itza attacked the porters guarding the expedition supplies and killed all of them. The Itza killed a total of 87 expedition members, including 50 soldiers, two Dominicans and about 35 Maya helpers. The remains of the small group that were killed on Nojpeten were later retrieved by the Spanish after the fall of the city and were taken back to Santiago de los Caballeros de Guatemala for burial.
Question: What is the first name of the leader of the party that were wary at first and asked for proof?

A: Diaz.
****
Q: Passage: Stefen "Stef" Djordjevic is a Serbian American high school defensive back who is gifted in both sports and academics. He is seeking a college football scholarship to escape the economically depressed small western Pennsylvania town of Ampipe and a dead-end job and life working at the mill like his father and brother Greg. He dreams of becoming an engineer right after he graduates from college. Ampipe is a company town whose economy is dominated by the town's main employer, American Pipe & Steel, a steel mill struggling through the downturn of the early 1980s recession. Stef gets through his days with the love of his girlfriend, Lisa Lietzke, and his strong bond with his teammates.
Most of the film takes place after the big football game against undefeated Walnut Heights High School. Ampipe appears headed to win the game, when a fumbled handoff in the closing secondsas well as Stefen's pass interference penalty earlier in the gameleads to a Walnut Heights victory. Following the game, Coach Burt Nickerson lambastes the fumbler in the locker room, telling him he "quit" the game. When Stefen retorts that the coach himself quit, the coach kicks him off the team.
In the aftermath, disgruntled Ampipe fans vandalize Coach Nickerson's house and yard. Stefen is present and is a reluctant participant, but is nonetheless seen by Nickerson as the vandals flee. From there, Stefen deals with personal battles, including dealing with the coach blackballing him among colleges because of his attitude and participation in the desecration of Nickerson's yard and house. Stefen gets in an argument with Lisa, and his best friend Brian declines a scholarship offer to USC and plans to marry his pregnant girlfriend.
Question: What's the nickname of the person who gets removed from the team after standing up to the coach?

A: Stef.
****
Q: Passage: Penetration testing involves inserting a probe into snow to determine the snow's mechanical properties. Experienced snow surveyors can use an ordinary ski pole to test snow hardness by pushing it into the snow; the results are recorded based on the change in resistance felt as the pole is inserted. A more scientific tool, invented in the 1930s but still in widespread use, is a ram penetrometer. This takes the form of a rod with a cone at the lower end. The upper end of the rod passes through a weight that is used as a hammer; the weight is lifted and released, and hits an anvila ledge around the rod which it cannot passwhich drives the rod into the snow. To take a measurement, the rod is placed on the snow and the hammer is dropped one or more times; the resulting depth of penetration is recorded. In soft snow a lighter hammer can be used to obtain more precise results; hammer weights range from 2 kg down to 0.1 kg. Even with lighter hammers, ram penetrometers have difficulty distinguishing thin layers of snow, which limits their usefulness with regard to avalanche studies, since thin and soft layers are often involved in avalanche formation.Two lightweight tools are in wide use that are more sensitive than ram penetrometers. A snow micro-penetrometer uses a motor to drive a rod into snow, measuring the force required; it is sensitive to 0.010.05 newtons, depending on the snow strength. A SABRE probe consists of a rod that is inserted manually into snow; accelerometer readings are then used to determine the penetrative force needed at each depth, and stored electronically.For testing dense polar snow, a cone penetrometer test (CPT) is use, based on the equivalent devices used for soil testing. CPT measurements can be used in hard snow and firn to depths of 510 m.
Question: What is the acronym for cone penetrometer test?

A:
CPT.
****