Two asian girls are smiling and running down a hallway as another girl and man walk behind them .
It is unlikely that two girls run down a hallway while their other sister and follow them to their appointment .
It is unlikely that two girls run down a hallway while their other sister and follow them to their appointment .
There is a very good chance that two girls run down a hallway while their other sister and follow them to their appointment .
Two girls run down a hallway while their other sister and follow them to their appointment .