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_name_47 (power VARCHAR, fuel_system VARCHAR, displacement VARCHAR)

### Question ###
How much power does the fuel injection system have with a displacement of 1991cc?

### Accurate SQL ###

SELECT power FROM table_name_47 WHERE fuel_system = "fuel injection" AND displacement = "1991cc"