When did the old manager vacate his position in Plymouth Argyle?
CREATE TABLE table_19359427_6 (date_of_vacancy VARCHAR, team VARCHAR)
SELECT date_of_vacancy FROM table_19359427_6 WHERE team = "Plymouth Argyle"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_19359427_6 (date_of_vacancy VARCHAR, team VARCHAR) Question: When did the old manager vacate his position in Plymouth Argyle? [/INST] SELECT date_of_vacancy FROM table_19359427_6 WHERE team = "Plymouth Argyle" </s>