Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_19 (season VARCHAR, acquisition_via VARCHAR, school_club_team VARCHAR)
### Question:
What season did School/Club Team, East have an Acquisition via of trade?
### Answer:
SELECT season FROM table_name_19 WHERE acquisition_via = "trade" AND school_club_team = "east"