Table: rail_car_info
Columns: number
builder
type
date
length
capacity

Question: Which Type has a Capacity of 28 passengers, and a Number of 16?
SQL: SELECT "type" FROM rail_car_info WHERE "capacity" = '28 passengers' AND "number" = '16'

Question: Which Builder has a Date smaller than 1913, and a Length of feet (m), and a Number of 15?
SQL: SELECT "builder" FROM rail_car_info WHERE "date" < 1913 AND "length" = 'feet (m)' AND "number" = '15'

Question: Which Date has a Length of feet 9inches (m), and a Builder of portland terminal company?
SQL: SELECT AVG("date") FROM rail_car_info WHERE "length" = 'feet 9inches (m)' AND "builder" = 'portland terminal company'

Question: Which Type has a Capacity of 10 tons, and a Number of 24-27?
SQL: SELECT "type" FROM rail_car_info WHERE "capacity" = '10 tons' AND "number" = '24-27'

Question: How many Dates have a Builder of laconia car company, and a Number of 63-68?
SQL: SELECT COUNT("date") FROM rail_car_info WHERE "builder" = 'laconia car company' AND "number" = '63-68'