อะไรคือสาเหตุของไฟป่าครั้งใหญ่ที่สุดในยูทาห์ในปี 1997?ไม่จำเป็นที่จะต้องใช้โต๊ะทั้งหมด
What was the cause of the largest wildfire in Utah in the year 1997?It is not neccessary to use all the tables.
 fires:  fire_year [ number]  discovery_date [ number]  discovery_doy [ number]  discovery_time [ text]  stat_cause_code [ number]  stat_cause_descr [ text]  cont_date [ text]  cont_doy [ text]  cont_time [ text]  fire_size [ number]  fire_size_class [ text]  latitude [ number]  longitude [ number]  owner_code [ number]  owner_descr [ text]  state [ text]  county [ text]  fips_code [ text]  fips_name [ text] 
SELECT * FROM fires WHERE state = "UT" AND fire_year = 1997 ORDER BY fire_size DESC LIMIT 1