Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE railway ( Builder VARCHAR )

### Question ###
Show different builders of railways, along with the corresponding number of railways using each builder.

### Accurate SQL ###

SELECT Builder, COUNT(*) FROM railway GROUP BY Builder