human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: Episode, First aired, Entrepreneur(s), Company or product name, Money requested (£), Description of product, Investing Dragon(s)
###Question: When did episode 6 first air with entrepreneur Guy Portelli?
gpt
SELECT First aired FROM table WHERE Episode = episode 6 AND Entrepreneur(s) = guy portelli