change back to dow
change back to dow


Former-commit-id: ea4e805297e52e4dd3df16a2aee2412da34dd98b
Former-commit-id: 7fb2cdd7dd4bba5dbc8625be1e974271a4efdb78
Former-commit-id: bfee239053540d1d55d531ffb5b0e90da808abee
StanfordHCI/cs247,StanfordHCI/cs247,StanfordHCI/cs247