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_81 (icb_sector VARCHAR, company VARCHAR)
### Question:
Which ICB Sector belongs to vallourec?
### Answer:
SELECT icb_sector FROM table_name_81 WHERE company = "vallourec"