CREATE TABLE table_72787 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Ground" TEXT, "Crowd" FLOAT, "Date" TEXT)

What score did the away team receive against home team Port Adelaide?
SELECT "Away team score" FROM table_72787 WHERE "Home team" = 'Port Adelaide'
SELECT "Away team score" FROM "table_72787" WHERE "Home team" = 'Port Adelaide'