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_90 (class VARCHAR, livery VARCHAR)
### Question:
What is the Class when Wessex Trains Pink is the Livery?
### Answer:
SELECT class FROM table_name_90 WHERE livery = "wessex trains pink"