If I leave at 4:00pm, how long is the bus ride to the library?
[IN:GET_ESTIMATED_DURATION If I leave [SL:DATE_TIME_DEPARTURE at 4 : 00 pm ] , how long is the [SL:METHOD_TRAVEL bus ] ride to [SL:DESTINATION [IN:GET_LOCATION [SL:CATEGORY_LOCATION the library ] ] ] ? ]