What is the reason for change when maryland 6th is the district? 
CREATE TABLE table_225100_4 (reason_for_change VARCHAR, district VARCHAR)
SELECT reason_for_change FROM table_225100_4 WHERE district = "Maryland 6th"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_225100_4 (reason_for_change VARCHAR, district VARCHAR) Question: What is the reason for change when maryland 6th is the district?  [/INST] SELECT reason_for_change FROM table_225100_4 WHERE district = "Maryland 6th" </s>