Table: imsa_race_data
Columns: race
length
class
circuit
date

Question: On what circuit is there a class gts-2 race that takes place on May 27?
SQL: SELECT "circuit" FROM imsa_race_data WHERE "date" = 'may 27' AND "class" = 'gts-2'

Question: On what circuit is there a race that lasts 2 hours?
SQL: SELECT "circuit" FROM imsa_race_data WHERE "length" = '2 hours'

Question: What class is the dodge dealers grand prix?
SQL: SELECT "class" FROM imsa_race_data WHERE "race" = 'the dodge dealers grand prix'

Question: What is the length of the First Union six hours at the Glen?
SQL: SELECT "length" FROM imsa_race_data WHERE "race" = 'first union six hours at the glen'

Question: What is the class of the race that takes place on August 25?
SQL: SELECT "class" FROM imsa_race_data WHERE "date" = 'august 25'