user: Question: How many candidates were nominated in 1952 with under 305133 votes?
Columns: ['Date', 'Candidates nominated', 'Candidates elected', 'Votes', '% of national vote']
Types: ['text', 'real', 'text', 'real', 'real']
Sample row: ['1947', 28.0, '10', 204020.0, 10.81]
SQL:

assistant: SELECT SUM("Candidates nominated") FROM "Table" WHERE "Date" = '1952' AND "Votes" < 305133.0;