Table: railway_vehicle_info
Columns: number_name
description
current_status
livery
date

Question: What is the latest death with a description of BR-Built inspection saloon?
SQL: SELECT MAX("date") FROM railway_vehicle_info WHERE "description" = 'br-built inspection saloon'

Question: What is the identifying number for a description of Stanier (Period III) full brake?
SQL: SELECT "number_name" FROM railway_vehicle_info WHERE "description" = 'stanier (period iii) full brake'

Question: What is the date with identifying number of No. 37817?
SQL: SELECT "date" FROM railway_vehicle_info WHERE "number_name" = 'no. 37817'