Table: cowboys_1977_season
Columns: week
date
result
record
opponent
points_for
points_against
first_downs
attendance

Question: What is the maximum number of points against when the attendance was 47678?
SQL: SELECT MAX("points_against") FROM cowboys_1977_season WHERE "attendance" = 47678

Question: What was the total number of first down on October 23?
SQL: SELECT COUNT("first_downs") FROM cowboys_1977_season WHERE "date" = 'October 23'