Task: Question Answering
Input (English): Context: We pitched a tent in the back yard tonight , she and I. I had to drag the dusty bag out from the basement , releasing the musty smell of a decade 's disuse . The tent was intact : no mildew stains or mouse droppings , only one small hole in the top burned trough by a spider 's egg sac . Once the tent was up , we lay on the crinkly plastic floor and looked out at the world through the domed roof . 
Question: Why did they pitch a tent in the back yard ?
Output (English): Because they thought it would be fun to camp out there .