user: Question: Who was in the three darts challenge that aired on 10 May 2010?
Columns: ['Episode Number', 'Air Date', 'Guests', 'Three Darts Challenge', 'Musical Performance']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [2.0, '5 April 2010', 'Aaron Johnson , Patsy Palmer , Sharleen Spiteri', 'Joanna Lumley', 'Sharleen Spiteri - Xandu']
SQL:

assistant: SELECT "Three Darts Challenge" FROM "Table" WHERE "Air Date" = '10 May 2010';