human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: YEAR, Seniors, Reserves, Thirds (Under 17's), Fourths (Under 14's)
###Question: Which Thirds (Under 17's) have a Reserve of barnawartha?
gpt
SELECT Thirds (Under 17's) FROM table WHERE Reserves = barnawartha