Task: Question Answering
Input (English): Context: The plan was that H , V and I were going to stick together and ride it at a casual speed . We did just that , rolling along the trails at a good speed , overtaking people from time to time on the uphills and going moderately on the downhills . The trails were great . Not too difficult , but not too easy . 
Question: What were they using to ride the trail ?
Output (English): A bicycle .