user: Question: What is the highest when Pohang Steelers is the team?
Columns: ['Team', 'Stadium', 'Match played', 'Highest', 'Lowest', 'Average']
Types: ['text', 'text', 'text', 'real', 'real', 'real']
Sample row: ["Busan I'Park", 'Asiad Main Stadium', '14', 17577.0, 3998.0, 7221.0]
SQL:

assistant: SELECT "Highest" FROM "Table" WHERE "Team" = 'Pohang Steelers';