What are the ids of the problems reported before the date of any problem reported by Lysanne Turcotte?
select t1.problem_id from problems as t1 join staff as t2 on t1.reported_by_staff_id = t2.staff_id where date_problem_reported < ( select min(date_problem_reported) from problems as t3 join staff as t4 on t3.reported_by_staff_id = t4.staff_id where t4.staff_first_name = "Lysanne" and t4.staff_last_name = "Turcotte" )