CREATE TABLE table_51811 ("Name" CLOB, "Built" CLOB, "Wheels" CLOB, "Fuel/ Trans" CLOB, "Status" CLOB, "Colour" CLOB)

What is the color of the locomotive built by Minirail 1954?
SELECT "Colour" FROM table_51811 WHERE "Built" = 'minirail 1954'
SELECT "Colour" FROM "table_51811" WHERE "Built" = 'minirail 1954'