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 table_name_80 ( loco_nos VARCHAR, class VARCHAR )

### Question ###
What is the Loco Nos of the e3 class?

### Accurate SQL ###

SELECT loco_nos FROM table_name_80 WHERE class = "e3"