CREATE TABLE table_name_48 (competition VARCHAR, away_result VARCHAR, season VARCHAR)

Away result of 0 3, and a Season of 1969-70 is what competition?
SELECT competition FROM table_name_48 WHERE away_result = "0–3" AND season = "1969-70"
SELECT "competition" FROM "table_name_48" WHERE "0–3" = "away_result" AND "1969-70" = "season"