Show the citizenship shared by singers with birth year before 1945 and after 1955.
CREATE TABLE singer (Citizenship VARCHAR, Birth_Year INTEGER)
SELECT Citizenship FROM singer WHERE Birth_Year < 1945 INTERSECT SELECT Citizenship FROM singer WHERE Birth_Year > 1955
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE singer (Citizenship VARCHAR, Birth_Year INTEGER) Question: Show the citizenship shared by singers with birth year before 1945 and after 1955. [/INST] SELECT Citizenship FROM singer WHERE Birth_Year < 1945 INTERSECT SELECT Citizenship FROM singer WHERE Birth_Year > 1955 </s>