query: SELECT problem_id FROM problems WHERE date_problem_reported < "1978-06-26"
question: What-what id of problem which what are reported them before 1978-06-26?
query_toks: SELECT problem_id FROM problems WHERE date_problem_reported < `` 1978-06-26 ''
query_toks_no_value: select problem_id from problems where date_problem_reported < value
question_toks: What-what id of problem which what are reported them before 1978-06-26?