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.
--------
Question: Passage: Four lifelong friends from the Boston neighborhood of Charlestown, Douglas "Doug" MacRay, James "Jem" Coughlin, Albert "Gloansy" MacGloan, and Desmond "Dez" Elden, rob a bank. They take the manager, Claire Keesey, hostage, but release her unharmed. When they find out Claire lives in their neighborhood, Doug begins to follow her to find out how much she has told the police, and to make sure that Jem does not eliminate her as a witness. Soon a romance grows between them, which Doug hides from the gang. As they grow closer, Doug tells Claire of his search for his long-lost mother, who he believes went to live with his aunt in Tangerine, Florida. He also recounts his chance to be a professional hockey player which he threw away for a life of crime, following in his father's footsteps. She in turn tells Doug that she saw a tattoo on one of the robbers, and he realizes that she can identify Jem and send them all to prison. He knows that Jem will kill her if he discovers the truth, so he persuades her that the authorities cannot protect her, and she decides not to tell the police.
After Claire tells Doug about being harassed and her car vandalized by Alex, a local Dominican thug, Doug enlists Jem for a favor, which they can never talk about. Doug and Jem don hockey masks and violently assault the offenders without Jem knowing the true reason for the favor is to protect Claire. 
Question: What are the aliases of the people who take a hostage?

Answer: Doug.


Question: Passage: This movie was inspired by a true story, following the life of a thug being released from prison after an 8 year prison sentence. In the beginning of the movie "G," who is played by The Game, leaves prison determined to not be locked up again. It doesn't take long for the streets to pull G in again, and he meets a lady named Alexis. However, both are hiding their secret lives (G being a hustler, Alexis being an undercover cop), who discusses 150 kilos of cocaine that G and Tone stole, which belonged to drug lord Tito Costa.
Coleman kidnaps Alexis and takes her to Costa. Coleman calls G to let him know his girlfriend has been kidnapped. G then gathers up his men and heads to Costa's garage, where a gun battle ensues. After the fight is over, all of G's and Tito's men are dead or injured.  G's right hand man kill Tito,Coleman shoot G's right hand man, G kill Coleman and then finds out that Alexis is an undercover cop. He then kills her. G walk off and want to start a new life in a good path and G's men who survived  also want to start a new life too after they come out of the hospital. 
Question: What is the name of the last person killed in the passage?

Answer: Alexis.


Question: Passage: If the pigeon became alert, it would often stretch out its head and neck in line with its body and tail, then nod its head in a circular pattern. When aggravated by another pigeon, it raised its wings threateningly, but passenger pigeons almost never actually fought. The pigeon bathed in shallow water, and afterwards lay on each side in turn and raised the opposite wing to dry it.The passenger pigeon drank at least once a day, typically at dawn, by fully inserting its bill into lakes, small ponds, and streams. Pigeons were seen perching on top of each other to access water, and if necessary, the species could alight on open water to drink. One of the primary causes of natural mortality was the weather, and every spring many individuals froze to death after migrating north too early. In captivity, a passenger pigeon was capable of living at least 15 years; Martha, the last known living passenger pigeon, was at least 17 and possibly as old as 29 when she died. It is undocumented how long a wild pigeon lived.The bird is believed to have played a significant ecological role in the composition of pre-Columbian forests of eastern North America. For instance, while the passenger pigeon was extant, forests were dominated by white oaks. This species germinated in the fall, therefore making its seeds almost useless as a food source during the spring breeding season, while red oaks produced acorns during the spring, which were devoured by the pigeons. The absence of the passenger pigeon's seed consumption may have contributed to the modern dominance of red oaks. Due to the immense amount of dung present at roosting sites, few plants grew for years after the pigeons left. Also, the accumulation of flammable debris (such as limbs broken from trees and foliage killed by excrement) at these sites may have increased both the frequency and intensity of forest fires, which would have favored fire-tolerant species, such as bur oaks, black oaks, and white oaks over less fire-tolerant species, such as red oaks, thus helping to explain the change in the composition of eastern forests since the passenger pigeon’s extinction (from white oaks, bur oaks, and black oaks predominating in presettlement forests, to the “dramatic expansion” of red oaks today). 
Question: What tree has dominated with the abscense of passenger pigeons?

Answer:
red oaks.


