CREATE TABLE table_38751 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Ground" TEXT, "Crowd" FLOAT, "Date" TEXT, "Report" TEXT)

Which away team score had a home team score of 15.8 (98)?
SELECT "Away team score" FROM table_38751 WHERE "Home team score" = '15.8 (98)'
SELECT "Away team score" FROM "table_38751" WHERE "Home team score" = '15.8 (98)'