Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_16 (start VARCHAR, main_host VARCHAR, winning_mentor VARCHAR)
### Question:
What is the start date with Luke Jacobz hosting and Dannii Minogue as a winning mentor?
### Answer:
SELECT start FROM table_name_16 WHERE main_host = "luke jacobz" AND winning_mentor = "dannii minogue"