TASK DEFINITION: In this task, you are given a question and a context passage. You have to answer the question based on the given passage.
PROBLEM: What was completed two decades and one year after Montana officially joined the United States?, Context: The state song was not composed until 21 years after statehood, when a musical troupe led by Joseph E. Howard stopped in Butte in September 1910. A former member of the troupe who lived in Butte buttonholed Howard at an after-show party, asking him to compose a song about Montana and got another partygoer, the city editor for the Butte Miner newspaper, Charles C. Cohan, to help. The two men worked up a basic melody and lyrics in about a half-hour for the entertainment of party guests, then finished the song later that evening, with an arrangement worked up the following day. Upon arriving in Helena, Howard's troupe performed 12 encores of the new song to an enthusiastic audience and the governor proclaimed it the state song on the spot, though formal legislative recognition did not occur until 1945. Montana is one of only three states to have a "state ballad", "Montana Melody", chosen by the legislature in 1983. Montana was the first state to also adopt a State Lullaby.

SOLUTION: The state song

PROBLEM: Which judge on American Idol was on more seasons, Keith Urban or Jennifer Lopez?, 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.

SOLUTION: Jennifer Lopez

PROBLEM: What is the result of sheathing a record correctly?, Context: Vinyl records can be warped by heat, improper storage, exposure to sunlight, or manufacturing defects such as excessively tight plastic shrinkwrap on the album cover. A small degree of warp was common, and allowing for it was part of the art of turntable and tonearm design. "wow" (once-per-revolution pitch variation) could result from warp, or from a spindle hole that was not precisely centered. Standard practice for LPs was to place the LP in a paper or plastic inner cover. This, if placed within the outer cardboard cover so that the opening was entirely within the outer cover, was said to reduce ingress of dust onto the record surface. Singles, with rare exceptions, had simple paper covers with no inner cover.

SOLUTION:
reduce ingress of dust onto the record surface