human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: DS Division, Main Town, Divisional Secretary, GN Divisions, Area (km 2 ), Sri Lankan Tamil, Sri Lankan Moors, Sinhalese, Burgher, Other, Total, Population Density (/km 2 )
###Question: Kaluvanchikudy is the main town in what DS division?
gpt
SELECT DS Division FROM table WHERE Main Town = Kaluvanchikudy