Rate the similarity of the following two sentences on a scale from 0 to 5, where 0 is "no meaning overlap" and 5 is "means the same thing"?

A man is riding a bicycle.
A man is riding a bicycle around a parking lot.

Options:
1). 0;
2). 1;
3). 2;
4). 3;
5). 4;
6). 5;
4).