Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_47 (railway_number_s_ VARCHAR, year_s__of_manufacture VARCHAR)
### Question:
What are the railway number(s) for year(s) of manufacture of 1905–1906?
### Answer:
SELECT railway_number_s_ FROM table_name_47 WHERE year_s__of_manufacture = "1905–1906"