CREATE TABLE "active" (
  "make_model" text,
  "length" text,
  "year" real,
  "numbers_quantity_ordered" text,
  "fuel_propulsion" text
);

Question: How many years have a Make/ Model of new flyer c40lfr?
SQL: SELECT COUNT("year") FROM "active" WHERE "make_model"='new flyer c40lfr';

Question: Which Make/ Model that Numbers (Quantity Ordered) of 1461–1500 (40 buses)?
SQL: SELECT "make_model" FROM "active" WHERE "numbers_quantity_ordered"='1461–1500 (40 buses)';

Question: Which Fuel Propulsion has Numbers (Quantity Ordered) of 7124-7156 (33 buses)?
SQL: SELECT "fuel_propulsion" FROM "active" WHERE "numbers_quantity_ordered"='7124-7156 (33 buses)';

Question: Which Numbers (Quantity Ordered) have a Fuel Propulsion of cng, and a Year smaller than 2008, and a Make/ Model of nabi 40-lfw?
SQL: SELECT "numbers_quantity_ordered" FROM "active" WHERE "fuel_propulsion"='cng' AND "year"<2008 AND "make_model"='nabi 40-lfw';

Question: Which Numbers (Quantity Ordered) have a Make/ Model of eldorado national passport?
SQL: SELECT "numbers_quantity_ordered" FROM "active" WHERE "make_model"='eldorado national passport';