instruction:
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: There are over 40 species of mammals in the Pine Creek Gorge. Leonard Harrison State Park's extensive forest cover makes it a habitat for "big woods" wildlife, including white-tailed deer, black bear, wild turkey, red and gray squirrels. Less common creatures include bobcats, coyote, fishers, river otters, and timber rattlesnakes. There are over 26 species of fish in Pine Creek, including trout, suckers, fallfish, and rock bass. Other aquatic species include crayfish and frogs.Several species have been reintroduced to the gorge. White-tailed deer were imported from Michigan and released throughout Pennsylvania to reestablish what had once been a thriving population. The current population of deer in Pennsylvania are descended from the original stock introduced beginning in 1906, after the lumberman had moved out of the area. The deer population has grown so much that today they exceed their carrying capacity in many areas. River otters were successfully reintroduced in 1983 and now breed in the gorge. Despite the fears of anglers, their diet is only 5 percent trout.Fishers, medium-sized weasels, were reintroduced to Pine Creek Gorge as part of an effort to establish a healthy population of fishers in Pennsylvania. Prior to the lumber era, fishers were numerous throughout the forests of Pennsylvania. They are generalized predators and will hunt any smaller creatures in their territory, including porcupines. Elk have been reintroduced west of the gorge in Clinton County and occasionally wander near the west rim of the canyon. Coyotes have come back on their own. Invasive insect species in the gorge include gypsy moths, which eat all the leaves off trees, especially oaks, and hemlock woolly adelgids, which weaken and kill hemlocks. Invasive plant species include purple loosestrife and Japanese knotweed. 
Question: What is the full name of the place that has gypsy moths?
answer:
Pine Creek Gorge.


question:
Passage: Dr. Frank Peralta is stabbed to death in his apartment one night. The detective on the case, Lt. Stevenson, quickly finds multiple witnesses putting Peralta's lover, Terry Collins, at the scene. However, when Stevenson finds Terry and questions her, she has an iron-clad alibi with multiple witnesses. It is revealed that Terry has an identical twin sister, Ruth, and the pair share the same job and routinely switch places for their own benefit. Stevenson and the district attorney are unable to prosecute, since the twins refuse to confirm which one of them has the alibi.
Unable to accept the "perfect crime", Lt. Stevenson asks Dr. Scott Elliot for help. Scott is an expert on twin study, and has been routinely encountering the Collins twins at their shared place of work, but does not know which one is which. As a front, Scott asks Terry and Ruth if he can study both of them individually as part of his research. The twins accept, though Ruth is worried that Scott might find out that Terry was at Peralta's apartment the night of the murder. However, Terry is attracted to Scott and insists that they can keep the secret for the sake of seeing him. She also comforts Ruth, reminding her that she was only at Peralta's apartment but didn't kill him.
From Scott's psychological tests and by spending time with them, he discovers that Ruth is kind and loving, while Terry is highly intelligent, insane, and has been manipulating Ruth almost their entire lives. Terry is jealous that people keep preferring Ruth over her, and is again enraged when Scott falls in love with Ruth instead of her. Terry starts methodically gaslighting Ruth, making her believe that she's hallucinating and going insane, in the hopes of pushing her to suicide. 
Question: What is the last name of the person whose murder the insane woman is suspected of committing?
answer:
Peralta.


question:
Passage: On November 30, 1928, whilst on tour in Cleveland, Beiderbecke suffered what Lion terms "a severe nervous crisis" and Sudhalter and Evans suggest "was in all probability an acute attack of delirium tremens", presumably triggered by Beiderbecke's attempt to curb his alcohol intake. "He cracked up, that's all", trombonist Bill Rank said. "Just went to pieces; broke up a roomful of furniture in the hotel."In February 1929, Beiderbecke returned home to Davenport to convalesce and was hailed by the local press as "the world's hottest cornetist". He then spent the summer with Whiteman's band in Hollywood in preparation for the shooting of a new talking picture, The King of Jazz. Production delays prevented any real work from being done on the film, leaving Beiderbecke and his pals plenty of time to drink heavily. By September, he was back in Davenport, where his parents helped him to seek treatment. He spent a month, from October 14 until November 18, at the Keeley Institute in Dwight, Illinois. According to Lion, an examination by Keeley physicians confirmed the damaging effects of Bix's long-term reliance on alcohol: "Bix admitted to having used liquor 'in excess' for the past nine years, his daily dose over the last three years amounting to three pints of 'whiskey' and twenty cigarettes.....A Hepatic dullness was obvious, 'knee jerk could not be obtained' – which confirmed the spread of the polyneuritis, and Bix was 'swaying in Romberg position' – standing up with his eyes closed".While he was away, Whiteman famously kept his chair open in Beiderbecke's honor, in the hope that he would occupy it again. However, when he returned to New York at the end of January 1930, Beiderbecke did not rejoin Whiteman and performed only sparingly. On his last recording session, in New York, on September 15, 1930, Beiderbecke played on the original recording of Hoagy Carmichael's new song, "Georgia on My Mind", with Carmichael doing the vocal, Eddie Lang on guitar, Joe Venuti on violin, Jimmy Dorsey on clarinet and alto saxophone, Jack Teagarden on trombone, and Bud Freeman on tenor saxophone. The song would go on to become a jazz and popular music standard. In 2014, the 1930 recording of "Georgia on My Mind" was inducted into the Grammy Hall of Fame.Beiderbecke's playing had an influence on Carmichael as a composer. One of his compositions, "Stardust", was inspired by Beiderbecke's improvisations, with a cornet phrase reworked by Carmichael into the song's central theme. Bing Crosby, who sang with Whiteman, also cited Beiderbecke as an important influence. "Bix and all the rest would play and exchange ideas on the piano", he said. 
Question: What is Beiderbecke's nickname?
answer:

Bix.