user: Question: Name the least yes for Dublin South
Columns: ['Constituency', 'Electorate', 'Votes', 'Turnout', 'Yes', 'No', 'Spoilt', 'Percent Yes']
Types: ['text', 'real', 'real', 'text', 'real', 'real', 'real', 'text']
Sample row: ['Cork City', 53019.0, 38850.0, '73.3', 20765.0, 15392.0, 2693.0, '57.4']
SQL:

assistant: SELECT MIN("Yes") FROM "Table" WHERE "Constituency" = 'Dublin South';