What is the last number in season of the episodes written by Dan Vebber?
CREATE TABLE table_28194879_1 (_number INTEGER, written_by VARCHAR)
SELECT MAX(_number) FROM table_28194879_1 WHERE written_by = "Dan Vebber"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_28194879_1 (_number INTEGER, written_by VARCHAR) Question: What is the last number in season of the episodes written by Dan Vebber? [/INST] SELECT MAX(_number) FROM table_28194879_1 WHERE written_by = "Dan Vebber" </s>