Task: Question Answering
Input (English): Passage: There is a trail of something going down the steps of my apartment building . I am sure it came from a trash bad . But from whose I am not sure . I have also seen someone else have a drippy trash bag . It is a stain , which , while it does not make the area look much worse , would be annoying to have in a nicer area . I wonder what could have caused the stain . I would n't be surprised if I caused it . I live right by those steps . So by trash bag would have more time to drip . The other day someone got me a bit wet from dumping out water . They ask people not to set trash outside the doors . Question: Who else could have done it? Option1: a friend Option2: her neighbors'
Output (English): her neighbors'