Table: nep_1980_season
Columns: week
opponent
result
stadium
record
attendance

Question: What week corresponds to the last one to be played at the memorial stadium?
SQL: SELECT MAX("week") FROM nep_1980_season WHERE "stadium" = 'Memorial Stadium'

Question: In which stadium is the week 5 game played?
SQL: SELECT "stadium" FROM nep_1980_season WHERE "week" = 5