Task: Question Answering
Input (English): Passage: Yesterday , I took my dog for a walk . I first asked him if he 'd like to go outside , and he got very excited . I walked to the front door and picked up his leash . I attached the leash to his collar and opened the door . We walked outside and I was sure to lock the door behind me . We walked down the street and the dog sniffed some plants , some grass and a street sign . After that , we got to the park where he could use the restroom . I was sure to bring extra bags in case this happened . I threw the bag away in the garbage , and we started our walk home . Once we got home , I opened the door , took off his leash , and gave him a treat for being a good boy . It was a very good walk . Question: Who sniffed the same bushes? Option1: the owners. Option2: the dog.
Output (English): the dog.