Without having read the story, it's hard to say. However, some possible key elements could be the places in New York that are significant to the person in the wheelchair. It could also be about the relationships they form, like with their caregivers or new friends they meet on the streets of New York. And perhaps the emotions they experience as they move around the city in their wheelchair.
Since I don't know the exact story, I can't share the key elements. But it might include the wheelchair user's interactions in New York.
Not knowing the story precisely, we can only speculate. Key elements could be the unique perspective of the wheelchair user in New York. Their experiences in different boroughs might be important. How they adapt to the city's fast - paced environment could be a key aspect. Also, any special moments of connection with the people or the culture of New York could be among the key elements. For example, if they have a favorite park or coffee shop that they frequent and the stories that unfold there could be part of the key elements of this 'New York I Love You Wheelchair Story'.