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 (£), Investing Dragon(s)
###Question: Who were the Investing Dragons in the episode that first aired on 18 January 2005 with the entrepreneur Tracey Herrtage?
gpt
SELECT Investing Dragon(s) FROM table WHERE First aired = 18 january 2005 AND Entrepreneur(s) = tracey herrtage