Two people on bicycles sit at a corner crosswalk in front of a red brick building while another bicyclist rides by behind them .
It is impossible that two bikers are trying to get away from the third bicyclist .
It is impossible that two bikers are trying to get away from the third bicyclist .
It is certain that two bikers are trying to get away from the third bicyclist .
Two bikers are trying to get away from the third bicyclist .