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 station ( Station_ID int, Name text, Annual_entry_exit real, Annual_interchanges real, Total_Passengers real, Location text, Main_Services text, Number_of_Platforms int )
TABLE: CREATE TABLE train ( Train_ID int, Name text, Time text, Service text )
TABLE: CREATE TABLE train_station ( Train_ID int, Station_ID int )

### Question ###
What is the number of platforms for each location? Show the comparison with a bar chart, I want to order by the Y in asc.

### Accurate SQL ###

SELECT Location, SUM(Number_of_Platforms) FROM station GROUP BY Location ORDER BY SUM(Number_of_Platforms)