question: How many times does the  rebuilt data contain cannot handle non-empty timestamp argument! 1929 and scrapped data contain cannot handle non-empty timestamp argument! 1954?
answer: SELECT COUNT(number) FROM table_12113888_1 WHERE rebuilt = "Cannot handle non-empty timestamp argument! 1929" AND scrapped_sold = "Cannot handle non-empty timestamp argument! 1954"
context: CREATE TABLE table_12113888_1 (number VARCHAR, rebuilt VARCHAR, scrapped_sold VARCHAR)