user: Question: What is the party when the constituency is 1. Chennai North? 
Columns: ['Constituency', 'Winner', 'Party', 'Margin', 'Runner-up a', 'Party a']
Types: ['text', 'text', 'text', 'real', 'text', 'text']
Sample row: ['1. Chennai North', 'D. Pandian', 'Indian National Congress', 118518.0, 'Aladi Aruna', 'DMK']
SQL:

assistant: SELECT "Party" FROM "Table" WHERE "Constituency" = '1. Chennai North';