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The second round of the competition begins. Two teams of students go head-to-head for a place in the quarter-finals. Amol Rajan asks the questions.
Two more of the highest-scoring losing teams from the heats compete for the final second round place. Amol Rajan asks the questions.
Round two of the competition continues. Two more teams of students battle it out for a place in the quarter-finals. Amol Rajan asks the questions.