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_14903999_1 ( womens_doubles VARCHAR, year VARCHAR, mixed_doubles VARCHAR, womens_singles VARCHAR )

### Question ###
Who won womens doubles the year magn s ingi helgason tinna helgad ttir won mixed doubles and ragna ing lfsd ttir won womens singles in 2010

### Accurate SQL ###

SELECT womens_doubles FROM table_14903999_1 WHERE mixed_doubles = "Magnús Ingi Helgason Tinna Helgadóttir" AND womens_singles = "Ragna Ingólfsdóttir" AND year = 2010