instruction:
In this task, you're given a passage, further information available on a particular linked term from the statement, and an answer term. Your job is to generate a question that can use the information provided to obtain the given answer. You should use the information on both passage and link information to create the question. Note that the answer to the question should be exactly the given answer, and if the answer is none, the answer to the question shouldn't be obtainable from the passage or linked information.
question:
Passage: Corals, including some major extinct groups Rugosa and Tabulata, have been important reef builders through much of the Phanerozoic since the Ordovician Period. However, other organism groups, such as calcifying algae, especially members of the red algae Rhodophyta, and molluscs (especially the rudist bivalves during the Cretaceous Period) have created massive structures at various times. During the Cambrian Period, the conical or tubular skeletons of Archaeocyatha, an extinct group of uncertain affinities (possibly sponges), built reefs. Other groups, such as the Bryozoa have been important interstitial organisms, living between the framework builders. The corals which build reefs today, the Scleractinia, arose after the PermianTriassic extinction event that wiped out the earlier rugose corals (as well as many other groups), and became increasingly important reef builders throughout the Mesozoic Era. They may have arisen from a rugose coral ancestor. Rugose corals built their skeletons of calcite and have a different symmetry from that of the scleractinian corals, whose skeletons are aragonite. However, there are some unusual examples of well-preserved aragonitic rugose corals in the Late Permian. In addition, calcite has been reported in the initial post-larval calcification in a few scleractinian corals. Nevertheless, scleractinian corals (which arose in the middle Triassic) may have arisen from a non-calcifying ancestor independent of the rugosan corals (which disappeared in the late Permian).
Link Information: none Answer: none
answer:
Which major coral reef group went extinct first during the Phanerozoic period?

question:
Passage: Spindler was born in odz, Poland, to an ethnic German family. He was the son of Gertrud Alma (nee Bernewitz) and Oskar Karl Spindler; his father was a businessman. Spindler was considered part of the Volksdeutsche by the Nazi regime, and after the German invasion of Poland in 1939 was required to join the Deutsches Jungvolk (part of the Hitler Youth). When Germany's Eastern Front collapsed in 1944, Spindler and other children of odz were evacuated to a rural estate north of the city. In January 1945, he and his companions were forced to flee west on foot to escape the advancing Red Army; many of them were killed by starvation, exposure, or bombing raids. Spindler was eventually reunited with his family in Magdeburg, and they settled in Weienfels, Saxony-Anhalt, which became part of the Soviet occupation zone and later East Germany. He was blacklisted from attending university due to his anti-Soviet views, and at the age of 17 was granted permission to move to Australia, sponsored by a relative who had settled in Melbourne.
Link Information: By 1940, it had eight million members.
Answer: eight million
answer:
How many children were part of the Hitler Youth the year the German Eastern Front collapsed?

question:
Passage: In August 2012, ABC ordered a pilot for a show called S.H.I.E.L.D., to be written by Joss Whedon, Jed Whedon, and Maurissa Tancharoen, and directed by Joss Whedon. On April 6, 2013, ABC announced that the show would be titled Marvel's Agents of S.H.I.E.L.D., and it was officially ordered to series on May 10, 2013. Jed Whedon, Tancharoen and Jeffrey Bell act as the series' showrunners, while Clark Gregg reprises his role from the films as Phil Coulson. The series was renewed for a second season on May 8, 2014, a third on May 7, 2015, a fourth on March 3, 2016, and a fifth on May 11, 2017, a sixth on May 14, 2018, and a seventh season on November 16, 2018; the sixth and seventh seasons both consist of 13 episodes. The seventh season will serve as the series' final season.
Link Information: none Answer: none
answer:
Which of S.H.I.E.L.D's seasons had the highest ratings?