[Q]: Question: "Which one has been there for 4 seasons?"  Context: "Fox announced on May 11, 2015 that the fifteenth season would be the final season of American Idol; as such, the season is expected to have an additional focus on the program's alumni. Ryan Seacrest returns as host, with Harry Connick Jr., Keith Urban, and Jennifer Lopez all returning for their respective third, fourth, and fifth seasons as judges."  Answer:
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[A]: Keith Urban


[Q]: Question: "How long does Nielsen track viewership of American Idol each year?"  Context: "Seasonal rankings (based on average total viewers per episode) of American Idol. It holds the distinction of having the longest winning streak in the Nielsen annual television ratings; it became the highest-rated of all television programs in the United States overall for an unprecedented seven consecutive years, or eight consecutive (and total) years when either its performance or result show was ranked number one overall."  Answer:
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[A]: Seasonal


[Q]: Question: "How many times were people sent forth from Russia?"  Context: "Two rounds of Soviet purges directed by Moscow (1927–1934 and 1937–1938) resulted in the expulsion of nearly 10,000 people, from all levels of the Communist Party of Tajikistan. Ethnic Russians were sent in to replace those expelled and subsequently Russians dominated party positions at all levels, including the top position of first secretary. Between 1926 and 1959 the proportion of Russians among Tajikistan's population grew from less than 1% to 13%. Bobojon Ghafurov, Tajikistan's First Secretary of the Communist Party of Tajikistan from 1946–1956 was the only Tajikistani politician of significance outside of the country during the Soviet Era. He was followed in office by Tursun Uljabayev (1956–61), Jabbor Rasulov (1961–1982), and Rahmon Nabiyev (1982–1985, 1991–1992)."  Answer:
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[A]: Two


[Q]: Question: "What is the first 2nd and 3rd bird mentioned with a short incubation?"  Context: "Incubation, which optimises temperature for chick development, usually begins after the last egg has been laid. In monogamous species incubation duties are often shared, whereas in polygamous species one parent is wholly responsible for incubation. Warmth from parents passes to the eggs through brood patches, areas of bare skin on the abdomen or breast of the incubating birds. Incubation can be an energetically demanding process; adult albatrosses, for instance, lose as much as 83 grams (2.9 oz) of body weight per day of incubation. The warmth for the incubation of the eggs of megapodes comes from the sun, decaying vegetation or volcanic sources. Incubation periods range from 10 days (in woodpeckers, cuckoos and passerine birds) to over 80 days (in albatrosses and kiwis)."  Answer:
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[A]:
woodpeckers, cuckoos and passerine