Task: Question Generation
Input (English): Passage: The Packers fell behind 7-0 to the Bears early in the 2nd quarter, but three consecutive Aaron Rodgers touchdown passes to James Jones gave the Packers a 21-7 lead midway through the third quarter. The Bears would pull to within 8 points late by way of two Olindo Mare field goals, but the Bears couldn't mount a comeback.  With the 21-13 win, the Packers clinched the NFC North division title for a second season in a row and secured a playoff berth for the fourth consecutive season.
Output (English): How many points did the packers lead by midway through?