Task: Question Answering
Input (English): Passage: We received an invitation to a birthday party for a good friend . It was a surprise party . So , last night we drove to a nearby town , where the party was held at another friend 's house . The host met us at the door and invited us in . Along with all of the other guests , we hid in the living room with the lights off . When our good friend arrived , we all jumped out and yelled " surprise ! " . She was quite surprised . We ate cake with ice cream and she opened her presents . She said " Thank You " to everybody . \ n We all visited . \ n When it got late , we said goodbye to our friend and the host , we went to our car , and drove home . Question: What song did they sing? Option1: Rap song. Option2: happy birthday
Output (English): happy birthday