Table: democrats_66_history
Columns: year
lijsttrekker
fractievoorzitter
cabinet
chair

Question: What is Lijsttrekker, when Year is after 1990, and when Chair is "Ingrid Van Engelshoven"?
SQL: SELECT "lijsttrekker" FROM democrats_66_history WHERE "year" > 1990 AND "chair" = 'ingrid van engelshoven'

Question: What is Fractievoorzitter, when Lijsttrekker is "No Elections", and when Year is after 2005?
SQL: SELECT "fractievoorzitter" FROM democrats_66_history WHERE "lijsttrekker" = 'no elections' AND "year" > 2005

Question: What is Cabinet, when Year is after 1981, when Fractievoorzitter is "Hans Van Mierlo", and when Chair is "W.I.J.M. Vrijhoef"?
SQL: SELECT "cabinet" FROM democrats_66_history WHERE "year" > 1981 AND "fractievoorzitter" = 'hans van mierlo' AND "chair" = 'w.i.j.m. vrijhoef'

Question: What is Lijsttrekker, when Cabinet is "Hans Van Mierlo", and when Fractievoorzitter is "Thom De Graaf"?
SQL: SELECT "lijsttrekker" FROM democrats_66_history WHERE "cabinet" = 'hans van mierlo' AND "fractievoorzitter" = 'thom de graaf'

Question: What is Cabinet, when Year is before 2001, when Lijsttrekker is "No Elections", when Fractievoorzitter is "Hans Van Mierlo", and when Chair is "S. Van Der Loo"?
SQL: SELECT "cabinet" FROM democrats_66_history WHERE "year" < 2001 AND "lijsttrekker" = 'no elections' AND "fractievoorzitter" = 'hans van mierlo' AND "chair" = 's. van der loo'