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_7 (location VARCHAR, built VARCHAR, name VARCHAR)
### Question:
What is the location of the Durfee Mill No. 1, built before 1872 ?
### Answer:
SELECT location FROM table_name_7 WHERE built < 1872 AND name = "durfee mill no. 1"