Who owns the locomotive that entered service on 30 October 1956?
CREATE TABLE table_name_80 (owner VARCHAR, entered_service__t_ VARCHAR)
SELECT owner FROM table_name_80 WHERE entered_service__t_ = "30 october 1956"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_80 (owner VARCHAR, entered_service__t_ VARCHAR) Question: Who owns the locomotive that entered service on 30 October 1956? [/INST] SELECT owner FROM table_name_80 WHERE entered_service__t_ = "30 october 1956" </s>