week date opponent result attendance bye
week
date
opponent
result
attendance
bye
number
number parsed year month day
raw home
result number number1 number2
number
number date text score number text
1 september 1, 1991 minnesota vikings w 10-6 64112 0
what week was the first bye opponent ?
WDT NN VBD-AUX DT JJ NN NN .
7
select c1_number from w where c3 is null