human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: Week, Team, Carries, Yards, Average
###Question: Which Yards have Carries smaller than 23, and a Team of at chi, and an Average smaller than 8.5?
gpt
SELECT MIN Yards FROM table WHERE Carries < 23 AND Team = at chi AND Average < 8.5