In the United States, cats and dogs are a factor in more than 86,000 falls each year. It has been estimated around 2% of dog-related injuries treated in UK hospitals are domestic accidents. The same study found that while dog involvement in road traffic accidents was difficult to quantify, dog-associated road accidents involving injury more commonly involved two-wheeled vehicles.
What sort of vehicle is most likely associated with accidents involving dogs?
{'text': 'two-wheeled vehicles', 'answer_start': 361}