How long will the drive take to the Philadelphia Zoo using the freeway?
[IN:GET_ESTIMATED_DURATION How long will the [SL:METHOD_TRAVEL drive ] take to [SL:DESTINATION [IN:GET_LOCATION [SL:POINT_ON_MAP the Philadelphia Zoo ] ] ] using [SL:PATH [IN:GET_LOCATION [SL:CATEGORY_LOCATION the freeway ] ] ] ? ]