What was the date that construction was finished when the unit was greifswald - 4 (kgr 4)?
CREATE TABLE table_name_28 (finish_construction VARCHAR, unit VARCHAR)
SELECT finish_construction FROM table_name_28 WHERE unit = "greifswald - 4 (kgr 4)"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_28 (finish_construction VARCHAR, unit VARCHAR) Question: What was the date that construction was finished when the unit was greifswald - 4 (kgr 4)? [/INST] SELECT finish_construction FROM table_name_28 WHERE unit = "greifswald - 4 (kgr 4)" </s>