user: Question: What is the latest round for Pohang Steelers as the away team?
Columns: ['Round', 'Date', 'Home Team', 'Score', 'Away Team', 'Attendance', 'Stadium']
Types: ['real', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: [1.0, '12 March 2008', 'Pohang Steelers', "0 - 2 Cornthwaite 3' Djite 59'", 'Adelaide United', 8436.0, 'Steelyard Stadium']
SQL:

assistant: SELECT MAX("Round") FROM "Table" WHERE "Away Team" = 'Pohang Steelers';