human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: Year, Date, Winner, Result, Loser, Location
###Question: What is the location when the new york jets lost earlier than 1997 and a Result of 31–28?
gpt
SELECT Location FROM table WHERE Loser = new york jets AND Year < 1997 AND Result = 31–28