CREATE TABLE table_70734 ("Model" CLOB, "Build date" CLOB, "Total produced" FLOAT, "Wheel arrangement" CLOB, "Prime mover" CLOB, "Power output" CLOB)

What is the build date when total produced is 2?
SELECT "Build date" FROM table_70734 WHERE "Total produced" = '2'
SELECT "Build date" FROM "table_70734" WHERE "Total produced" = '2'