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_39240 ( "Polling Firm" text, "Date" text, "Venstre (V)" text, "Social Democrats (A)" text, "Danish People's Party (O)" text, "Socialist People's Party (F)" text, "Conservative People's Party (C)" text, "Social Liberal Party (B)" text, "Liberal Alliance (I)" text, "Red-Green Alliance (\u00d8)" text, "Christian Democrats (K)" text, "Government" text, "Opposition" text )

### Question ###
What is the Liberal Alliance that is backed by the Polling Firm, Capacent, and 13.0% of the Socialist People's Party?

### Accurate SQL ###

SELECT "Liberal Alliance (I)" FROM table_39240 WHERE "Polling Firm" = 'capacent' AND "Socialist People's Party (F)" = '13.0%'