user: Question: Who are the semifinalists of the tournament with Magnus Gustafsson as the finalist?
Columns: ['Tournament', 'Surface', 'Week', 'Winner and score', 'Finalist', 'Semifinalists']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Indian Wells', 'Hard', 'March 4', 'Jim Courier (16) 4–6, 6–3, 4–6, 6–3, 7–6(4)', 'Guy Forget (3)', 'Stefan Edberg (1) Michael Stich (11)']
SQL:

assistant: SELECT "Semifinalists" FROM "Table" WHERE "Finalist" = 'Magnus Gustafsson';