How many numbers were listed under Silver Medals for Portsmouth HS?
CREATE TABLE table_1305623_20 (silver_medals VARCHAR, ensemble VARCHAR)
SELECT COUNT(silver_medals) FROM table_1305623_20 WHERE ensemble = "Portsmouth HS"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_1305623_20 (silver_medals VARCHAR, ensemble VARCHAR) Question: How many numbers were listed under Silver Medals for Portsmouth HS? [/INST] SELECT COUNT(silver_medals) FROM table_1305623_20 WHERE ensemble = "Portsmouth HS" </s>