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 probably not the case that two people wait for the street light to change while another rider is n't paying attention .
It is probably not the case that two people wait for the street light to change while another rider is n't paying attention .
It is probable that two people wait for the street light to change while another rider is n't paying attention .
Two people wait for the street light to change while another rider is n't paying attention .