Task: Question Answering
Input (English): Passage: Yesterday , while I was playing at Grandma 's , a button popped off my sweater . I took it to Grandma and asked her what to do . `` Give that to me , child , '' she said , `` and we will fix it together . '' We walked to her sewing room , where she keeps all kinds of colorful pieces of fabric , thread , and buttons . Bring it to me . '' I found it quickly and walked to Grandma 's favorite chair . She had her sewing box open , and I could see all kinds of needles , a pair of scissors , and even a little red pincushion with dozens of pins stuck in it . `` Push the end of the thread through that little hole in the needle for Grandma . These old eyes are n't what they used to be , '' she said . I did so and handed it back to her . She tied a knot in the bottom of the long piece of thread , and said , `` Now watch carefully , child , and you will know how to fix it yourself next time . '' She poked the needle through the holes in the button and through the sweater at the same time , crisscrossing the thread as she went . `` There , child , good as new , '' she said . `` Thank you , Grandma ! '' I said . `` That was fast . She smiled , gave me a cookie , and sent me out to play . Question: Who tied the knot? Option1: clerk Option2: grandma
Output (English): grandma