what is the registration located on 31 january 1975 where first flew?
CREATE TABLE table_1997759_1 (registration VARCHAR, first_flew VARCHAR)
SELECT registration FROM table_1997759_1 WHERE first_flew = "31 January 1975"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_1997759_1 (registration VARCHAR, first_flew VARCHAR) Question: what is the registration located on 31 january 1975 where first flew? [/INST] SELECT registration FROM table_1997759_1 WHERE first_flew = "31 January 1975" </s>