user: Question: What season did School/Club Team, East have an Acquisition via of Trade?
Columns: ['Name', 'Position', 'Number', 'School/Club Team', 'Season', 'Acquisition via']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Mark Macapagal', 'Guard', '81, 80', 'San Sebastian', '2007-2011', 'Trade']
SQL:

assistant: SELECT "Season" FROM "Table" WHERE "Acquisition via" = 'Trade' AND "School/Club Team" = 'East';