CREATE TABLE table_9470 ("Date" TEXT, "Round" TEXT, "Opponent" TEXT, "Venue" TEXT, "Result" TEXT, "Attendance" FLOAT)

What was the lowest attendance in round r1 at H venue?
SELECT MIN("Attendance") FROM table_9470 WHERE "Round" = 'r1' AND "Venue" = 'h'
SELECT MIN("Attendance") FROM "table_9470" WHERE "Round" = 'r1' AND "Venue" = 'h'